A175480 - OEIS

A175480

a(1)=1. For n >= 1, if a(n) = 1, then append to the sequence the digits of binary n+1 (most significant digits first and least significant digits last). If a(n) = 0, then append to the sequence the digits of binary n+1 in reverse order (least significant digits first and most significant digits last).

1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0

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OFFSET

1,1

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..10000

PROG

(PARI) a=[1]; for (n=1, 84, print1 (a[n] ", "); if (#a<84, a=concat(a, if (a[n], binary(n+1), Vecrev(binary(n+1)))))) \\ Rémy Sigrist, Nov 08 2018

CROSSREFS

Cf. A175479.

Sequence in context: A080813 A100672 A079559 * A285568 A014577 A157926

Adjacent sequences: A175477 A175478 A175479 * A175481 A175482 A175483

KEYWORD

base,nonn

AUTHOR

Leroy Quet, May 25 2010

EXTENSIONS

Definition fixed by Leroy Quet, May 28 2010

STATUS

approved