44406

Appears in sequences

• a(n) = 121*n^2 - 204*n + 86.at n=19A157440
• Number A(n,k) of endofunctions on [n] such that no element has a preimage of cardinality k; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=61A245405
• Number of endofunctions on [n] such that no element has a preimage of cardinality four.at n=6A245408