A370074 - cp's OEIS frontend

A370074 Expansion of (1 - 2x) (1 - 4x + 2x^2) / (1 - 9x + 28x^2 - 35x^3 + 15x^4 - x^5).

n	a(n)
0	1
1	3
2	9
3	28
4	90
5	297
6	1001
7	3432
8	11933
9	41971
10	149017
11	533141
12	1919215
13	6942950
14	25215181
15	91858456
16	335449202
17	1227312350
18	4496994689
19	16496266812
20	60566602692
21	222524531559
22	817997639090
23	3008175954887
24	11066005530460
25	40717739034761

[1, 3, 9, 28, 90, 297, 1001, 3432, 11933, 41971, 149017, 533141, 1919215, 6942950, 25215181, 91858456, 335449202, 1227312350, 4496994689, 16496266812, 60566602692, 222524531559, 817997639090, 3008175954887, 11066005530460, 40717739034761]

cp's OEIS Frontend

A370074 Expansion of (1 - 2x) (1 - 4x + 2x^2) / (1 - 9x + 28x^2 - 35x^3 + 15x^4 - x^5).

Table of values

List of values

cp's OEIS Frontend

A370074 Expansion of (1 - 2*x) * (1 - 4*x + 2*x^2) / (1 - 9*x + 28*x^2 - 35*x^3 + 15*x^4 - x^5).

Table of values

List of values

A370074 Expansion of (1 - 2x) (1 - 4x + 2x^2) / (1 - 9x + 28x^2 - 35x^3 + 15x^4 - x^5).