A115816 - OEIS

A115816

Sequence A115815 in binary.

0, 111, 1110, 11100, 100111, 110111, 111000, 1001110, 1101110, 1110000, 10011100, 10100111, 11011100, 11100000, 100100111, 100110111, 100111000, 101001110, 110110111, 110111000, 111000000, 111000111, 1001001110, 1001101110, 1001110000, 1010011100, 1010100111

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..26.

FORMULA

a(n) = A007088(A115815(n)).

MATHEMATICA

Map[FromDigits[IntegerDigits[#, 2]] &, Select[Range[0, 1000], BitXor[2*#, 7*#] == 9*# &]] (* Paolo Xausa, Oct 01 2024 *)

CROSSREFS

Cf. A007088, A115815.

Sequence in context: A284351 A115771 A115875 * A115877 A289938 A290063

Adjacent sequences: A115813 A115814 A115815 * A115817 A115818 A115819

KEYWORD

nonn,base

AUTHOR

Antti Karttunen, Feb 01 2006

STATUS

approved