A074790 - cp's OEIS frontend

A074790 a(n) = (2n+1)!Sum_{k=0..n} (-1)^k/(2*k+1)!.

n	a(n)
0	1
1	5
2	101
3	4241
4	305353
5	33588829
6	5239857325
7	1100370038249
8	299300650403729
9	102360822438075317
10	42991545423991633141
11	21753721984539766369345
12	13052233190723859821607001
13	9162667699888149594768114701

[1, 5, 101, 4241, 305353, 33588829, 5239857325, 1100370038249, 299300650403729, 102360822438075317, 42991545423991633141, 21753721984539766369345, 13052233190723859821607001, 9162667699888149594768114701]

cp's OEIS Frontend

A074790 a(n) = (2n+1)!Sum_{k=0..n} (-1)^k/(2*k+1)!.

Table of values

List of values

cp's OEIS Frontend

A074790 a(n) = (2*n+1)!*Sum_{k=0..n} (-1)^k/(2*k+1)!.

Table of values

List of values

A074790 a(n) = (2n+1)!Sum_{k=0..n} (-1)^k/(2*k+1)!.