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A372992
a(n) = (n!)!/((n-1)!)!.
0
1, 1, 2, 360, 861733891296165888000
OFFSET
0,3
COMMENTS
a(5) has 177 digits.
MATHEMATICA
a[0] = 1; a[n_] := a[n] = (n!)!/((n - 1)!)!;
Table[a[n], {n, 0, 6}]
CROSSREFS
Cf. A000142.
Sequence in context: A325629 A362476 A062381 * A077350 A013506 A013512
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jul 16 2024
STATUS
approved