Number T(n,k) of endofunctions on [n] such that at most k elements with nonempty preimage have equal preimage cardinality and non-equinumerous preimages have cardinalities that differ by at least k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

A231915

Number T(n,k) of endofunctions on [n] such that at most k elements with nonempty preimage have equal preimage cardinality and non-equinumerous preimages have cardinalities that differ by at least k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.