A373878 Row products of A317617.

1, 1, 25, 3360, 1336336, 1158917760, 1870414552161, 5024209998931200, 20882706457600000000, 126806525870641017811200, 1078732544346879404306640625, 12413512011036114072165367296000, 188031682201497672618081000000000000, 3661653518107730704646938085472357120000

Offset

0,3

Links

Stefano Spezia, Table of n, a(n) for n = 0..150

Formula

a(n) = A185826(n) = A006003(n)^n for even n.

a(n) = Pochhammer((1 + n^3)/2, n)) for odd n.

Mathematica

a[0]=1; a[n_]:=If[EvenQ[n], (n+n^3)^n/2^n, Pochhammer[(1+n^3)/2, n]]; Array[a, 14, 0]

Crossrefs

Cf. A000079, A001093, A006003, A034262, A185826, A317617.

Sequence in context: A178188 A203186 A322249 * A185826 A178026 A012748

Adjacent sequences: A373875 A373876 A373877 * A373879 A373880 A373881

Keyword

nonn

Author

Stefano Spezia, Jun 20 2024

Status

approved