A379220 - cp's OEIS frontend

A379220 Square array A(n, k) = sigma((2n-1)^2) * sigma((2k-1)^2), read by antidiagonals.

n	a(n)
1	1
2	13
3	13
4	31
5	169
6	31
7	57
8	403
9	403
10	57
11	121
12	741
13	961
14	741
15	121
16	133
17	1573
18	1767
19	1767
20	1573
21	133
22	183
23	1729
24	3751
25	3249
26	3751
27	1729
28	183
29	403
30	2379
31	4123
32	6897
33	6897
34	4123
35	2379
36	403
37	307
38	5239
39	5673
40	7581
41	14641
42	7581
43	5673
44	5239
45	307
46	381
47	3991
48	12493
49	10431
50	16093
51	16093
52	10431
53	12493
54	3991
55	381
56	741
57	4953
58	9517
59	22971
60	22143
61	17689
62	22143
63	22971
64	9517
65	4953
66	741

[1, 13, 13, 31, 169, 31, 57, 403, 403, 57, 121, 741, 961, 741, 121, 133, 1573, 1767, 1767, 1573, 133, 183, 1729, 3751, 3249, 3751, 1729, 183, 403, 2379, 4123, 6897, 6897, 4123, 2379, 403, 307, 5239, 5673, 7581, 14641, 7581, 5673, 5239, 307, 381, 3991, 12493, 10431, 16093, 16093, 10431, 12493, 3991, 381, 741, 4953, 9517, 22971, 22143, 17689, 22143, 22971, 9517, 4953, 741]

cp's OEIS Frontend

A379220 Square array A(n, k) = sigma((2n-1)^2) * sigma((2k-1)^2), read by antidiagonals.

Table of values

List of values