60355

Appears in sequences

• Antidiagonal sums of symmetric square array A101515 and also equals the binomial transform of a sequence formed from terms of A101514 repeated twice.at n=12A101516
• Partial sums of n concatenated n times.at n=4A118115
• Number T(n,k) of set partitions of [n] where each subset is again partitioned into k nonempty subsets; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=59A324162
• Number of set partitions of [n] where each subset is again partitioned into four nonempty subsets.at n=10A327505
• Expansion of e.g.f. -log( 1 - (exp(x) - 1)^4 / 4! ).at n=6A346954