OFFSET
0,3
MAPLE
a := n -> n! * Stirling2(2*n + 1, n):
seq(a(n), n = 0..14);
MATHEMATICA
A367392[n_]:=n!StirlingS2[2n+1, n];
Array[A367392, 20, 0] (* Paolo Xausa, Nov 24 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, Nov 21 2023
STATUS
approved