A033540 - cp's OEIS frontend

A033540 a(n+1) = n*(a(n) + 1) for n >= 1, a(1) = 1.

n	a(n)
1	1
2	2
3	6
4	21
5	88
6	445
7	2676
8	18739
9	149920
10	1349289
11	13492900
12	148421911
13	1781062944
14	23153818285
15	324153456004
16	4862301840075
17	77796829441216
18	1322546100500689
19	23805829809012420
20	452310766371235999
21	9046215327424720000
22	189970521875919120021

[1, 2, 6, 21, 88, 445, 2676, 18739, 149920, 1349289, 13492900, 148421911, 1781062944, 23153818285, 324153456004, 4862301840075, 77796829441216, 1322546100500689, 23805829809012420, 452310766371235999, 9046215327424720000, 189970521875919120021]

cp's OEIS Frontend

A033540 a(n+1) = n*(a(n) + 1) for n >= 1, a(1) = 1.

Table of values

List of values