A224422 - cp's OEIS frontend

A224422 Expansion of (1-x)(1-3x)/(1-9x+28x^2-35x^3+15x^4-x^5).

n	a(n)
0	1
1	5
2	20
3	75
4	275
5	1001
6	3639
7	13243
8	48280
9	176341
10	645150
11	2363596
12	8669142
13	31825005
14	116914020
15	429737220
16	1580244061
17	5812839156
18	21387636101
19	78708626396
20	289699273501
21	1066406842677
22	3925882147566
23	14453780545834
24	53216783798234
25	195944670698910

[1, 5, 20, 75, 275, 1001, 3639, 13243, 48280, 176341, 645150, 2363596, 8669142, 31825005, 116914020, 429737220, 1580244061, 5812839156, 21387636101, 78708626396, 289699273501, 1066406842677, 3925882147566, 14453780545834, 53216783798234, 195944670698910]

cp's OEIS Frontend

A224422 Expansion of (1-x)(1-3x)/(1-9x+28x^2-35x^3+15x^4-x^5).

Table of values

List of values

cp's OEIS Frontend

A224422 Expansion of (1-x)*(1-3*x)/(1-9*x+28*x^2-35*x^3+15*x^4-x^5).

Table of values

List of values

A224422 Expansion of (1-x)(1-3x)/(1-9x+28x^2-35x^3+15x^4-x^5).