253108

Appears in sequences

• Number T(n,k) of entries in the k-th blocks of all set partitions of [n] when blocks are ordered by increasing lengths (and increasing smallest elements); triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=47A319298
• Number of entries in the third blocks of all set partitions of [n] when blocks are ordered by increasing lengths.at n=7A332943