A115967 - cp's OEIS frontend

A115967 Expansion of 1/(2sqrt(1-2x-3*x^2) - 1).

n	a(n)
0	1
1	2
2	8
3	28
4	104
5	384
6	1428
7	5316
8	19820
9	73948
10	276044
11	1030796
12	3850048
13	14382248
14	53732172
15	200759004
16	750134520
17	2802980640
18	10474015164
19	39139487292
20	146259311592
21	546558514368
22	2042458815324
23	7632600834924
24	28522903136796

[1, 2, 8, 28, 104, 384, 1428, 5316, 19820, 73948, 276044, 1030796, 3850048, 14382248, 53732172, 200759004, 750134520, 2802980640, 10474015164, 39139487292, 146259311592, 546558514368, 2042458815324, 7632600834924, 28522903136796]

cp's OEIS Frontend

A115967 Expansion of 1/(2sqrt(1-2x-3*x^2) - 1).

Table of values

List of values

cp's OEIS Frontend

A115967 Expansion of 1/(2*sqrt(1-2*x-3*x^2) - 1).

Table of values

List of values

A115967 Expansion of 1/(2sqrt(1-2x-3*x^2) - 1).