A210460 - cp's OEIS frontend

A210460 Expansion of x(1+x)/(1-x-2x^2-2*x^3-x^4).

n	a(n)
1	1
2	2
3	4
4	10
5	23
6	53
7	123
8	285
9	660
10	1529
11	3542
12	8205
13	19007
14	44030
15	101996
16	236275
17	547334
18	1267906
19	2937120
20	6803875
21	15761261
22	36511157
23	84578549
24	195927260
25	453867933
26	1051390708
27	2435559643
28	5642004185
29	13069772820
30	30276291184

[1, 2, 4, 10, 23, 53, 123, 285, 660, 1529, 3542, 8205, 19007, 44030, 101996, 236275, 547334, 1267906, 2937120, 6803875, 15761261, 36511157, 84578549, 195927260, 453867933, 1051390708, 2435559643, 5642004185, 13069772820, 30276291184]

cp's OEIS Frontend

A210460 Expansion of x(1+x)/(1-x-2x^2-2*x^3-x^4).

Table of values

List of values

cp's OEIS Frontend

A210460 Expansion of x*(1+x)/(1-x-2*x^2-2*x^3-x^4).

Table of values

List of values

A210460 Expansion of x(1+x)/(1-x-2x^2-2*x^3-x^4).