The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A164862 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A164862

a(n) is the smallest positive integer that, when written in binary, contains the binary representations of both A164861(n) and the reversal of the order of the digits of A164861(n) as (overlapping) substrings.
(history; published version)

#7 by Charles R Greathouse IV at Tue Mar 11 01:32:46 EDT 2014

AUTHOR

__Leroy Quet__, , Aug 28 2009

Discussion

Tue Mar 11

01:32

OEIS Server: https://oeis.org/edit/global/2122

#6 by N. J. A. Sloane at Wed Feb 05 20:18:59 EST 2014

AUTHOR

__Leroy Quet_, _, Aug 28 2009

Discussion

Wed Feb 05

20:18

OEIS Server: https://oeis.org/edit/global/2118

#5 by N. J. A. Sloane at Wed Feb 05 20:12:13 EST 2014

AUTHOR

_Leroy Quet, _, Aug 28 2009

Discussion

Wed Feb 05

20:12

OEIS Server: https://oeis.org/edit/global/2117

#4 by Russ Cox at Fri Mar 30 17:29:59 EDT 2012

EXTENSIONS

Extended by _Ray Chandler (rayjchandler(AT)sbcglobal.net), _, Mar 14 2010

Discussion

Fri Mar 30

17:29

OEIS Server: https://oeis.org/edit/global/154

#3 by N. J. A. Sloane at Sat Oct 02 03:00:00 EDT 2010

KEYWORD

base,nonn,new

AUTHOR

Leroy Quet (http://www.prism-of-spirals.net/), , Aug 28 2009

#2 by N. J. A. Sloane at Sun Jul 11 03:00:00 EDT 2010

KEYWORD

base,nonn,new

AUTHOR

Leroy Quet (q1qq2qqq3qqqq(AT)yahoohttp://www.prism-of-spirals.comnet/), Aug 28 2009

#1 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

a(n) is the smallest positive integer that, when written in binary, contains the binary representations of both A164861(n) and the reversal of the order of the digits of A164861(n) as (overlapping) substrings.

DATA

27, 27, 51, 93, 51, 93, 99, 165, 231, 165, 107, 189, 99, 107, 119, 231, 119, 189, 195, 325, 455, 843, 717, 633, 325, 1619, 471, 717, 219, 381, 195, 1619, 231, 843, 219, 495, 455, 231, 471, 633, 495, 381, 387, 645, 903, 1161, 1675, 1421, 1935, 1161, 403, 1193

OFFSET

1,1

COMMENTS

Every integer that occurs in this sequence occurs at least twice.

EXAMPLE

The second odd non-binary-palindrome is 13, which is 1101 in binary. The smallest positive integer that, when written in binary, contains both 1101 and its reverse (1011) is 27, which is 11011 in binary.

CROSSREFS

Cf. A164861.

KEYWORD

base,nonn

AUTHOR

Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Aug 28 2009

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 14 2010

STATUS

approved