The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A305259 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A305259

x-coordinates of a point moving counterclockwise on concentric squares of grid points rotated by Pi/4 with side length m*sqrt(2), m=1,2,..., with jump to next square on the positive x-axis.
(history; published version)

#17 by N. J. A. Sloane at Tue Jun 05 10:04:55 EDT 2018

STATUS

proposed

approved

#16 by Jon E. Schoenfield at Tue Jun 05 08:31:55 EDT 2018

STATUS

editing

proposed

#15 by Jon E. Schoenfield at Tue Jun 05 08:31:37 EDT 2018

EXAMPLE

y:

3 | 16 28

| / \ \

2 | 17 7 15 27

| / / \ \ \

1 | 18 8 2 6 14 26

| / / / \ \ \ \

0 | 19 9 3 1 5 13 25

| \ \ \ --> --> -->

-1 | 20 10 4 12 24

| \ \ / /

-2 | 21 11 23

| \ /

-3 | 22

__________________________________

x: -3 -2 -1 0 1 2 3 4

================================================

==========Proposed alternative diagram==========

================================================

STATUS

proposed

editing

Discussion

Tue Jun 05

08:31

Jon E. Schoenfield: Okay, done.  Thanks!

#14 by Jon E. Schoenfield at Tue Jun 05 00:44:43 EDT 2018

STATUS

editing

proposed

Discussion

Tue Jun 05

03:12

Hugo Pfoertner: Jon, your diagram is much better to read. I had been to stingy with space. The new diagram should replace my old one.

#13 by Jon E. Schoenfield at Tue Jun 05 00:44:40 EDT 2018

EXAMPLE

| / |\ \

| / | \ \

| / / |\ \ \

| / / | \ \ \

| / / / |\ \ \ \

| / / / | \ \ \ \

| \ \ \ | ---------/ / /

| \ \ \ | / ---------- /

| \ \ \ |/ / -----------

| \ \ \ | --------/ / /

| \ \ \ | / ---------- /

| \ \ \ | / / ----------

| \ \ | / /

| \ \ |/ /

| \ \ | / /

| \ | /

| \ |/

| \ | /

STATUS

proposed

editing

#12 by Jon E. Schoenfield at Tue Jun 05 00:40:06 EDT 2018

STATUS

editing

proposed

#11 by Jon E. Schoenfield at Tue Jun 05 00:40:03 EDT 2018

EXAMPLE

| \ \ \ | --------/ / /

| \ \ \ | / ---------- /

| \ \ \ | / / /--------

| \ \ \ | ---------/ / /

| \ \ \ | / ---------- /

| \ \ \ |/ / -----------

STATUS

proposed

editing

#10 by Jon E. Schoenfield at Mon Jun 04 20:45:38 EDT 2018

STATUS

editing

proposed

#9 by Jon E. Schoenfield at Mon Jun 04 20:44:33 EDT 2018

EXAMPLE

================================================

==========Proposed alternative diagram==========

================================================

y ^

| |

3 | 16 28

| / |\ \

| / | \ \

2 | 17 7 15 27

| / / |\ \ \

| / / | \ \ \

1 | 18 8 2 6 14 26

| / / / |\ \ \ \

| / / / | \ \ \ \

0 +-19------9------3------+------1------5-----13-----25->

| \ \ \ | --------/ / /

| \ \ \ | / ---------- /

| \ \ \ | / / /--------

-1 | 20 10 4 12 24

| \ \ | / /

| \ \ |/ /

-2 | 21 11 23

| \ | /

| \ |/

-3 | 22

| |

+-----------------------+--------------------------->

-3 -2 -1 0 1 2 3 x

STATUS

proposed

editing

Discussion

Mon Jun 04

20:45

Jon E. Schoenfield: @Hugo -- I had trouble reading the existing diagram, so I tried expanding it ... and I think the result may be a little better ... but maybe not.  Do you have a preference?  (If you like the original better, that's fine!)  :-)

#8 by Hugo Pfoertner at Mon Jun 04 13:40:02 EDT 2018

STATUS

editing

proposed