A308701 - cp's OEIS frontend

A308701 Square array A(n,k), n >= 1, k >= 0, read by antidiagonals, where A(n,k) is Sum_{d|n} d^(k*(d-1)).

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	2
7	1
8	5
9	10
10	3
11	1
12	9
13	82
14	67
15	2
16	1
17	17
18	730
19	4101
20	626
21	4
22	1
23	33
24	6562
25	262153
26	390626
27	7788
28	2
29	1
30	65
31	59050
32	16777233
33	244140626
34	60466262
35	117650
36	4
37	1
38	129
39	531442
40	1073741857
41	152587890626
42	470184985314
43	13841287202
44	2097219
45	3

[1, 1, 2, 1, 3, 2, 1, 5, 10, 3, 1, 9, 82, 67, 2, 1, 17, 730, 4101, 626, 4, 1, 33, 6562, 262153, 390626, 7788, 2, 1, 65, 59050, 16777233, 244140626, 60466262, 117650, 4, 1, 129, 531442, 1073741857, 152587890626, 470184985314, 13841287202, 2097219, 3]

cp's OEIS Frontend

A308701 Square array A(n,k), n >= 1, k >= 0, read by antidiagonals, where A(n,k) is Sum_{d|n} d^(k*(d-1)).

Table of values

List of values