A327238 - cp's OEIS frontend

A327238 Expansion of Sum_{k>=1} ((1 + k * x^k)^k - 1).

n	a(n)
1	1
2	4
3	9
4	20
5	25
6	63
7	49
8	160
9	108
10	350
11	121
12	940
13	169
14	1225
15	1475
16	2304
17	289
18	7560
19	361
20	8025
21	12446
22	7139
23	529
24	58192
25	3750
26	13858
27	61965
28	102655
29	841
30	191181
31	961
32	318464
33	220704
34	40460
35	354172
36	1304370
37	1369
38	63175
39	629863
40	4012608
41	1681
42	1916733
43	1849

[1, 4, 9, 20, 25, 63, 49, 160, 108, 350, 121, 940, 169, 1225, 1475, 2304, 289, 7560, 361, 8025, 12446, 7139, 529, 58192, 3750, 13858, 61965, 102655, 841, 191181, 961, 318464, 220704, 40460, 354172, 1304370, 1369, 63175, 629863, 4012608, 1681, 1916733, 1849]

cp's OEIS Frontend

A327238 Expansion of Sum_{k>=1} ((1 + k * x^k)^k - 1).

Table of values

List of values