A360749 - cp's OEIS frontend

A360749 Expansion of Sum_{k>=0} (x * (1 + k*x^3))^k.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	5
6	10
7	17
8	30
9	64
10	146
11	315
12	649
13	1386
14	3164
15	7381
16	16931
17	38649
18	90406
19	217474
20	527586
21	1277452
22	3112371
23	7705059
24	19336789
25	48800634
26	123617380
27	315671212
28	814711955
29	2119996540
30	5545342621
31	14584694613
32	38641783669
33	103158314515

[1, 1, 1, 1, 2, 5, 10, 17, 30, 64, 146, 315, 649, 1386, 3164, 7381, 16931, 38649, 90406, 217474, 527586, 1277452, 3112371, 7705059, 19336789, 48800634, 123617380, 315671212, 814711955, 2119996540, 5545342621, 14584694613, 38641783669, 103158314515]

cp's OEIS Frontend

A360749 Expansion of Sum_{k>=0} (x * (1 + k*x^3))^k.

Table of values

List of values