A026535 a(n) = t(1+5n) where t = A001285 (Thue-Morse sequence).

2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 2, 1, 2, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 1, 1, 1, 1, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 1, 1, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 1, 1, 2, 2, 2, 2, 1, 1, 2, 1, 2, 2, 2, 2, 2, 1, 2

Offset

0,1

Links

Table of n, a(n) for n=0..89.

Prog

(PARI) a(n)=1+hammingweight(5*n+1)%2 \\ Charles R Greathouse IV, May 09 2016

Crossrefs

Cf. A001285, A026517.

Sequence in context: A321004 A258595 A233544 * A080462 A194823 A098396

Adjacent sequences: A026532 A026533 A026534 * A026536 A026537 A026538

Keyword

nonn

Author

Clark Kimberling

Extensions

Name and Pari corrected by Sean A. Irvine, Oct 06 2019

Status

approved