A379223 - cp's OEIS frontend

A379223 Sum of the divisors of the n-th odd square: a(n) = sigma((2*n-1)^2).

n	a(n)
1	1
2	13
3	31
4	57
5	121
6	133
7	183
8	403
9	307
10	381
11	741
12	553
13	781
14	1093
15	871
16	993
17	1729
18	1767
19	1407
20	2379
21	1723
22	1893
23	3751
24	2257
25	2801
26	3991
27	2863
28	4123
29	4953
30	3541
31	3783
32	6897
33	5673
34	4557
35	7189
36	5113
37	5403
38	10153
39	7581
40	6321
41	9841
42	6973
43	9517
44	11323
45	8011
46	10431
47	12909
48	11811
49	9507
50	16093
51	10303
52	10713
53	22971
54	11557

[1, 13, 31, 57, 121, 133, 183, 403, 307, 381, 741, 553, 781, 1093, 871, 993, 1729, 1767, 1407, 2379, 1723, 1893, 3751, 2257, 2801, 3991, 2863, 4123, 4953, 3541, 3783, 6897, 5673, 4557, 7189, 5113, 5403, 10153, 7581, 6321, 9841, 6973, 9517, 11323, 8011, 10431, 12909, 11811, 9507, 16093, 10303, 10713, 22971, 11557]

cp's OEIS Frontend

A379223 Sum of the divisors of the n-th odd square: a(n) = sigma((2*n-1)^2).

Table of values

List of values