135642
domain: N
Appears in sequences
- Concatenation of sequence (1,3,..,2n-1,2n,2n-2,..,2).at n=2A007943
- Begin with n and place (n-1) on the most significant side, place (n-2) on the least significant side and so on until a 1 is placed.at n=5A089370
- a(1) = 1; a(n+1) = a(n) + Sum_{d|n} a(n/d) * a(d).at n=11A351787
- G.f. satisfies A(x) = (1 + x*A(x)) * (1 - x*A(x)^2).at n=17A364374