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

Offset: 1

Author

Leroy Quet, May 25 2010

Keywords

• base
• nonn

Links

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

Crossrefs

Cf. A175479.

Programs

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

Extensions

Definition fixed by Leroy Quet, May 28 2010