OFFSET
0,2
FORMULA
a(n) * Catalan(n - 1) = (2*n)! * A127632(n) for n >= 1.
MATHEMATICA
a[n_] := (2 n)! HypergeometricPFQ[{3/2, 2, 1 - n}, {3, 2 - 2n}, 4]; a[0] := 1;
Table[a[n], {n, 0, 15}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Luschny, May 12 2021
STATUS
approved