A078162 a(n) = A051201(n!).

1, 1, 3, 12, 60, 406, 3120, 26823, 257022, 2712926, 31311886, 392308000, 5302926524, 76924127104, 1191973363059, 19650226851964, 343408795841627, 6341818750193544, 123405357866753108, 2523790088462591703, 54119963305579115810, 1214292989338825766682

Offset

0,3

Links

Table of n, a(n) for n=0..21.

Mathematica

Table[ Apply[ Plus, Union[ Table[ Floor[w!/j], {j, 1, w!}]]], {w, 1, 11}]

Crossrefs

Cf. A051201, A078159, A078160, A078161.

Sequence in context: A357594 A159867 A082278 * A348002 A211774 A002497

Adjacent sequences: A078159 A078160 A078161 * A078163 A078164 A078165

Keyword

nonn

Author

Labos Elemer, Nov 27 2002

Extensions

Extended by Robert G. Wilson v, Dec 02 2002

Terms a(12) onward from Max Alekseyev, Feb 12 2012

a(0)=1 prepended by Alois P. Heinz, Oct 31 2023

Status

approved