A084253 - cp's OEIS frontend

A084253 a(n) is the denominator of the coefficient of z^(2n-1) in the Maclaurin expansion of Sqrt[Pi]Erfi[z].

n	a(n)
1	1
2	3
3	5
4	21
5	108
6	660
7	4680
8	37800
9	342720
10	3447360
11	38102400
12	459043200
13	5987520000
14	84064780800
15	1264085222400
16	20268952704000
17	345226033152000
18	6224529991680000
19	118443913555968000
20	2372079457972224000

[1, 3, 5, 21, 108, 660, 4680, 37800, 342720, 3447360, 38102400, 459043200, 5987520000, 84064780800, 1264085222400, 20268952704000, 345226033152000, 6224529991680000, 118443913555968000, 2372079457972224000]

cp's OEIS Frontend

A084253 a(n) is the denominator of the coefficient of z^(2n-1) in the Maclaurin expansion of Sqrt[Pi]Erfi[z].

Table of values

List of values