A318750 - cp's OEIS frontend

A318750 a(n) = Sum_{k=1..n} k * tau_3(k), where tau_3 is A007425.

n	a(n)
1	1
2	7
3	16
4	40
5	55
6	109
7	130
8	210
9	264
10	354
11	387
12	603
13	642
14	768
15	903
16	1143
17	1194
18	1518
19	1575
20	1935
21	2124
22	2322
23	2391
24	3111
25	3261
26	3495
27	3765
28	4269
29	4356
30	5166
31	5259
32	5931
33	6228
34	6534
35	6849
36	8145
37	8256
38	8598
39	8949
40	10149
41	10272
42	11406
43	11535
44	12327
45	13137
46	13551

[1, 7, 16, 40, 55, 109, 130, 210, 264, 354, 387, 603, 642, 768, 903, 1143, 1194, 1518, 1575, 1935, 2124, 2322, 2391, 3111, 3261, 3495, 3765, 4269, 4356, 5166, 5259, 5931, 6228, 6534, 6849, 8145, 8256, 8598, 8949, 10149, 10272, 11406, 11535, 12327, 13137, 13551]

cp's OEIS Frontend

A318750 a(n) = Sum_{k=1..n} k * tau_3(k), where tau_3 is A007425.

Table of values

List of values