A097022 - cp's OEIS frontend

A097022 a(n) = (sigma(2n^2)-3)/6.

n	a(n)
1	0
2	2
3	6
4	10
5	15
6	32
7	28
8	42
9	60
10	77
11	66
12	136
13	91
14	142
15	201
16	170
17	153
18	302
19	190
20	325
21	370
22	332
23	276
24	552
25	390
26	457
27	546
28	598
29	435
30	1007
31	496
32	682
33	864
34	767
35	883
36	1270
37	703
38	952
39	1189
40	1317
41	861
42	1852
43	946
44	1396
45	1875
46	1382
47	1128
48	2216
49	1400
50	1952
51	1995
52	1921

[0, 2, 6, 10, 15, 32, 28, 42, 60, 77, 66, 136, 91, 142, 201, 170, 153, 302, 190, 325, 370, 332, 276, 552, 390, 457, 546, 598, 435, 1007, 496, 682, 864, 767, 883, 1270, 703, 952, 1189, 1317, 861, 1852, 946, 1396, 1875, 1382, 1128, 2216, 1400, 1952, 1995, 1921]

cp's OEIS Frontend

A097022 a(n) = (sigma(2n^2)-3)/6.

Table of values

List of values