A307996 - cp's OEIS frontend

A307996 Expansion of e.g.f. exp(1 - exp(x)(1 - 2x)).

n	a(n)
0	1
1	1
2	4
3	15
4	73
5	410
6	2591
7	18165
8	139266
9	1155509
10	10293729
11	97815520
12	986113613
13	10499247005
14	117603042220
15	1381191356979
16	16958788930317
17	217132031279842
18	2892337840164051
19	40002168264724193
20	573363461815952802
21	8502905138072937073
22	130268705062115090965
23	2058969680487762098496

[1, 1, 4, 15, 73, 410, 2591, 18165, 139266, 1155509, 10293729, 97815520, 986113613, 10499247005, 117603042220, 1381191356979, 16958788930317, 217132031279842, 2892337840164051, 40002168264724193, 573363461815952802, 8502905138072937073, 130268705062115090965, 2058969680487762098496]

cp's OEIS Frontend

A307996 Expansion of e.g.f. exp(1 - exp(x)(1 - 2x)).

Table of values

List of values

cp's OEIS Frontend

A307996 Expansion of e.g.f. exp(1 - exp(x)*(1 - 2*x)).

Table of values

List of values

A307996 Expansion of e.g.f. exp(1 - exp(x)(1 - 2x)).