A122877 - cp's OEIS frontend

A122877 Expansion of (1-2x-3x^2-(1-x)sqrt(1-2x-7x^2))/(8x^3).

n	a(n)
0	0
1	1
2	2
3	7
4	20
5	65
6	206
7	679
8	2248
9	7569
10	25690
11	88055
12	303964
13	1056497
14	3693158
15	12977655
16	45813008
17	162400609
18	577843890
19	2063053991
20	7388487460
21	26535797729
22	95552015614
23	344897769991
24	1247685613272

[0, 1, 2, 7, 20, 65, 206, 679, 2248, 7569, 25690, 88055, 303964, 1056497, 3693158, 12977655, 45813008, 162400609, 577843890, 2063053991, 7388487460, 26535797729, 95552015614, 344897769991, 1247685613272]

cp's OEIS Frontend

A122877 Expansion of (1-2x-3x^2-(1-x)sqrt(1-2x-7x^2))/(8x^3).

Table of values

List of values

cp's OEIS Frontend

A122877 Expansion of (1-2*x-3*x^2-(1-x)*sqrt(1-2*x-7*x^2))/(8*x^3).

Table of values

List of values

A122877 Expansion of (1-2x-3x^2-(1-x)sqrt(1-2x-7x^2))/(8x^3).