A356667 - cp's OEIS frontend

A356667 Expansion of e.g.f. Sum_{k>=0} x^k / (1 - k*x^k/k!).

n	a(n)
0	1
1	1
2	4
3	12
4	72
5	240
6	2520
7	10080
8	127680
9	816480
10	11037600
11	79833600
12	1514177280
13	12454041600
14	261655954560
15	2699348652000
16	62869385779200
17	711374856192000
18	19407798693803520
19	243290200817664000
20	7300765959334848000
21	102980278869910041600

[1, 1, 4, 12, 72, 240, 2520, 10080, 127680, 816480, 11037600, 79833600, 1514177280, 12454041600, 261655954560, 2699348652000, 62869385779200, 711374856192000, 19407798693803520, 243290200817664000, 7300765959334848000, 102980278869910041600]

cp's OEIS Frontend

A356667 Expansion of e.g.f. Sum_{k>=0} x^k / (1 - k*x^k/k!).

Table of values

List of values