A029767 - cp's OEIS frontend

A029767 a(n) = (n-1)!*(2^n-1) for n>=1, a(0)=0.

n	a(n)
0	0
1	1
2	3
3	14
4	90
5	744
6	7560
7	91440
8	1285200
9	20603520
10	371226240
11	7428153600
12	163459296000
13	3923502105600
14	102017281766400
15	2856571067750400
16	85698439706880000
17	2742370993410048000
18	93240969463369728000
19	3356681303055015936000
20	127554011161191014400000

[0, 1, 3, 14, 90, 744, 7560, 91440, 1285200, 20603520, 371226240, 7428153600, 163459296000, 3923502105600, 102017281766400, 2856571067750400, 85698439706880000, 2742370993410048000, 93240969463369728000, 3356681303055015936000, 127554011161191014400000]

cp's OEIS Frontend

A029767 a(n) = (n-1)!*(2^n-1) for n>=1, a(0)=0.

Table of values

List of values