380333228

Appears in sequences

• a(n) is the difference by which n^n overestimates the value of (1/2) Sum_{k>=0} k^n/2^k.at n=9A133286
• Number T(n,k) of endofunctions on [n] such that at least one preimage with cardinality k exists and, if j is the largest value with a nonempty preimage, the preimage cardinality of i is >=k for all i<=j and equal to k for at least one i<=j; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=45A245733