161061274
domain: N
Appears in sequences
- a(1) = a(2) = 1, a(2n + 1) = 2*a(2n) and a(2n) = 2*a(2n - 1) + (-1)^n.at n=28A016029
- a(n) = (3*16^n + 2)/5.at n=7A061654
- Expansion of (1-x^2)/((1-2*x)*(1+x^2)).at n=28A100088
- a(n) = 3*a(n-1) + 4*a(n-2), with a(0)=1, a(1)=2.at n=14A122117
- a(n) = a(n-1) + a(n-2) + a(n-3) + 2*a(n-4) with a(0)=2, a(1)=1, a(2)=5, a(3)=10.at n=27A226309
- The length of the shortest prefix of the Thue-Morse word decomposable to not less than n palindromes.at n=21A320429