The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A097239 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A097239

Numbers n that are the hypotenuse of exactly 17 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 17 ways.
(history; published version)

#17 by OEIS Server at Mon Dec 30 20:35:59 EST 2019

LINKS

Ray Chandler, <a href="/A097239/b097239_1.txt">Table of n, a(n) for n = 1..10000</a>

#16 by Ray Chandler at Mon Dec 30 20:35:59 EST 2019

STATUS

editing

approved

Discussion

Mon Dec 30

20:35

OEIS Server: Installed new b-file as b097239.txt.  Old b-file is now b097239_1.txt.

#15 by Ray Chandler at Mon Dec 30 20:35:54 EST 2019

COMMENTS

If m is a term, then 2*m and p*m are terms where p is any prime of the form 4k+3. - Ray Chandler, Dec 30 2019

LINKS

Ray Chandler, <a href="/A097239/b097239_1.txt">Table of n, a(n) for n = 1..100010000</a>

STATUS

approved

editing

#14 by Ray Chandler at Sun Aug 13 12:56:14 EDT 2017

STATUS

editing

approved

#13 by Ray Chandler at Sun Aug 13 12:56:11 EDT 2017

CROSSREFS

Cf. A004144 (0), A084645 (1), A084646 (2), A084647 (3), A084648 (4), A084649 (5), A097219 (6), A097101 (7), A290499 (8), A290500 (9), A097225 (10), A290501 (11), A097226 (12), A097102 (13), A290502 (14), A290503 (15), A097238 (16), A290504 (18), A290505 (19), A097103 (22), A097244 (31), A097245 (37), A097282 (40), A097626 (67).

STATUS

approved

editing

#12 by Ray Chandler at Sun Aug 06 13:11:05 EDT 2017

STATUS

editing

approved

#11 by Ray Chandler at Sun Aug 06 13:11:01 EDT 2017

LINKS

Ray Chandler, <a href="/A097239/b097239.txt">Table of n, a(n) for n = 1..1000</a>

STATUS

approved

editing

#10 by Joerg Arndt at Fri Aug 04 10:40:29 EDT 2017

STATUS

proposed

approved

#9 by Michel Marcus at Fri Aug 04 10:09:53 EDT 2017

STATUS

editing

proposed

#8 by Michel Marcus at Fri Aug 04 10:09:49 EDT 2017

OFFSET

0,1,1

EXTENSIONS

Offset corrected by Michel Marcus, Aug 04 2017

STATUS

approved

editing