The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A043311 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A043311

a(n)=A033005(n)/8.
(history; published version)

#6 by M. F. Hasler at Mon Feb 03 12:46:14 EST 2014

STATUS

editing

approved

#5 by M. F. Hasler at Mon Feb 03 12:25:51 EST 2014

NAME

a(n)=s(n)/8, where s=A033005(n)/8.

COMMENTS

Numbers which, written in base 49, have only digits 0 through 6 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

PROG

(PARI) is_A043311(n)=(n=[n])&&!until(!n[1], ((n=divrem(n[1], 49))[2]<7 && n[1]%7!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

CROSSREFS

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029. ~

STATUS

approved

editing

#4 by Russ Cox at Fri Mar 30 18:56:34 EDT 2012

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

Clark Kimberling

Discussion

Fri Mar 30

18:56

OEIS Server: https://oeis.org/edit/global/285

#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

KEYWORD

nonn,base,new

AUTHOR

Clark Kimberling, (ck6(AT)evansville.edu)

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

NAME

a(n)=s(n)/8, where s=A043296A033005.

KEYWORD

nonn,base,new

AUTHOR

Clark Kimberling, ck6@cedar.(AT)evansville.edu

#1 by N. J. A. Sloane at Sat Dec 11 03:00:00 EST 1999

NAME

a(n)=s(n)/8, where s=A043296.

DATA

1, 2, 3, 4, 5, 6, 49, 51, 52, 53, 54, 55, 98, 99, 101, 102, 103, 104, 147, 148, 149, 151, 152, 153, 196, 197, 198, 199, 201, 202, 245, 246, 247, 248, 249, 251, 294, 295, 296, 297, 298, 299, 2402, 2403, 2404, 2405, 2406, 2407, 2499

OFFSET

1,2

KEYWORD

nonn,base

AUTHOR

Clark Kimberling, ck6@cedar.evansville.edu

STATUS

approved