52269domain: NAppears in sequencesExpansion of tanh(log(1+x)*exp(x)).at n=9A009785Number of length n+3 0..2 arrays with at most one downstep in every n consecutive neighbor pairs.at n=16A255110Write n as a sum of distinct powers of 2, then take the primes of those powers of 2 and multiply them together.at n=46A325094