A175920 - OEIS

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A175920

Convert n to binary. XNOR each respective digit of binary n and binary A030101(n), where A030101(n) is the reversal of the order of the digits in the binary representation of n (given in decimal). a(n) is the decimal value of the result.

0, 1, 0, 3, 2, 7, 2, 7, 6, 15, 0, 9, 0, 9, 6, 15, 14, 31, 4, 21, 14, 31, 4, 21, 4, 21, 14, 31, 4, 21, 14, 31, 30, 63, 12, 45, 18, 51, 0, 33, 18, 51, 0, 33, 30, 63, 12, 45, 12, 45, 30, 63, 0, 33, 18, 51, 0, 33, 18, 51, 12, 45, 30, 63, 62, 127, 28, 93, 42, 107, 8, 73, 62, 127, 28, 93, 42

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,4

COMMENTS

Description format taken from Leroy Quet's OR and AND gate sequences for consistency.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..16383

MATHEMATICA

Table[f = IntegerDigits[x, 2]; f = f + Reverse[f]; FromDigits[ Table[If[EvenQ[f[[r]]], 1, 0], {r, 1, Length[f]}], 2], {x, STARTPOINT, ENDPOINT}]

CROSSREFS

Or A175298 and And A175297 gate sequences. The rest of the equivalent sequences for other gates are adjacent.

Sequence in context: A366161 A174238 A361145 * A200593 A249112 A265219

Adjacent sequences: A175917 A175918 A175919 * A175921 A175922 A175923

KEYWORD

base,nonn

AUTHOR

Dylan Hamilton, Oct 15 2010

STATUS

approved