273960

Appears in sequences

• Triangle read by rows: T(n,k) is the number of permutations of [n] having k adjacent cycles (0 <= k <= n). An adjacent cycle is a cycle of the form (i, i+1, i+2, ...) (including 1-element cycles).at n=58A184184
• G.f. A(x) satisfies 1 = Sum_{n=-oo..+oo} x^(2*n) * (x^n - A(x))^(3*n+1).at n=8A380677