21198

Appears in sequences

• Number of n step self-avoiding walks on 3 X infinity grid starting from (0,1).at n=13A007825
• Numbers n with omega(n) = omega of 3 nearest larger and 3 nearest smaller neighbors.at n=10A101936
• Numbers n such that n^24 + 1 = p*q with p,q distinct primes.at n=34A119982
• G.f. satisfies: A(x) = Sum_{n>=0} x^n * A(x)^n * (1 + x*A(x)^n)^n.at n=8A300043