A105864 - cp's OEIS frontend

A105864 Expansion of (1/(1-x^2))*c(x/(1-x^2)), where c(x) is the g.f. of A000108.

n	a(n)
0	1
1	1
2	3
3	7
4	21
5	65
6	215
7	735
8	2585
9	9281
10	33883
11	125383
12	469229
13	1772801
14	6752623
15	25902975
16	99978865
17	388001025
18	1513077235
19	5926139207
20	23301146501
21	91942524481
22	363957103303
23	1444966207967
24	5752187960841
25	22955311342145

[1, 1, 3, 7, 21, 65, 215, 735, 2585, 9281, 33883, 125383, 469229, 1772801, 6752623, 25902975, 99978865, 388001025, 1513077235, 5926139207, 23301146501, 91942524481, 363957103303, 1444966207967, 5752187960841, 22955311342145]

cp's OEIS Frontend

A105864 Expansion of (1/(1-x^2))*c(x/(1-x^2)), where c(x) is the g.f. of A000108.

Table of values

List of values