A372674 - cp's OEIS frontend

A372674 a(n) = Sum_{j=1..n} Sum_{k=1..n} tau(j*k).

n	a(n)
1	1
2	8
3	23
4	54
5	89
6	162
7	221
8	326
9	439
10	596
11	707
12	964
13	1107
14	1352
15	1645
16	1976
17	2179
18	2630
19	2865
20	3390
21	3859
22	4316
23	4615
24	5406
25	5883
26	6444
27	7059
28	7892
29	8299
30	9430
31	9877
32	10794
33	11635
34	12424
35	13361
36	14852
37	15415
38	16324
39	17349
40	18952
41	19587
42	21342
43	22017
44	23486
45	25177

[1, 8, 23, 54, 89, 162, 221, 326, 439, 596, 707, 964, 1107, 1352, 1645, 1976, 2179, 2630, 2865, 3390, 3859, 4316, 4615, 5406, 5883, 6444, 7059, 7892, 8299, 9430, 9877, 10794, 11635, 12424, 13361, 14852, 15415, 16324, 17349, 18952, 19587, 21342, 22017, 23486, 25177]

cp's OEIS Frontend

A372674 a(n) = Sum_{j=1..n} Sum_{k=1..n} tau(j*k).

Table of values

List of values