42196

Appears in sequences

• Triangle, read by rows, equal to the matrix square of A113381. Also given by: Q^2 = R*P = R*Q*(R^-2)*Q*R = P*Q*(P^-2)*Q*P, using triangular matrices P=A113370, Q=A113381 and R=A113389.at n=32A113384
• T(n,k) is the number of unlabeled acyclic single-source automata with n transient states on a (k+1)-letter input alphabet.at n=25A128249
• a(n) = 36*n^2 - 55*n + 21.at n=34A157262
• Numbers k such that the digit sum of 167^k is divisible by k.at n=52A175552
• Table read by antidiagonals: T(m,n) = number of 2-metered (m,n)-parking functions.at n=59A372818