A367657 - cp's OEIS frontend

A367657 G.f. A(x) satisfies A(x) = 1 / (1 - x - x * (1 + x + x^2 + x^3) * A(x^4)).

n	a(n)
0	1
1	2
2	5
3	13
4	34
5	90
6	238
7	629
8	1662
9	4394
10	11616
11	30707
12	81173
13	214584
14	567259
15	1499563
16	3964128
17	10479273
18	27702219
19	73231500
20	193589270
21	511758023
22	1352844978
23	3576279113
24	9453982143
25	24991835308
26	66066533905
27	174648514118
28	461687660561
29	1220482733670

[1, 2, 5, 13, 34, 90, 238, 629, 1662, 4394, 11616, 30707, 81173, 214584, 567259, 1499563, 3964128, 10479273, 27702219, 73231500, 193589270, 511758023, 1352844978, 3576279113, 9453982143, 24991835308, 66066533905, 174648514118, 461687660561, 1220482733670]

cp's OEIS Frontend

A367657 G.f. A(x) satisfies A(x) = 1 / (1 - x - x * (1 + x + x^2 + x^3) * A(x^4)).

Table of values

List of values