A195735 - cp's OEIS frontend

A195735 a(n) = 2*sigma(n^2) - sigma(n)^2.

n	a(n)
1	1
2	5
3	10
4	13
5	26
6	38
7	50
8	29
9	73
10	110
11	122
12	22
13	170
14	222
15	230
16	61
17	290
18	173
19	362
20	158
21	458
22	566
23	530
24	-298
25	601
26	798
27	586
28	398
29	842
30	458
31	962
32	125
33	1154
34	1382
35	1230
36	-779
37	1370
38	1734
39	1622
40	-226
41	1682
42	1158
43	1850
44	1190
45	1418
46	2558
47	2210
48	-2090
49	2353
50	2285
51	2798
52	1742
53	2810
54	902
55	3062
56	78
57	3506
58	4094
59	3482
60	-3238

[1, 5, 10, 13, 26, 38, 50, 29, 73, 110, 122, 22, 170, 222, 230, 61, 290, 173, 362, 158, 458, 566, 530, -298, 601, 798, 586, 398, 842, 458, 962, 125, 1154, 1382, 1230, -779, 1370, 1734, 1622, -226, 1682, 1158, 1850, 1190, 1418, 2558, 2210, -2090, 2353, 2285, 2798, 1742, 2810, 902, 3062, 78, 3506, 4094, 3482, -3238]

cp's OEIS Frontend

A195735 a(n) = 2*sigma(n^2) - sigma(n)^2.

Table of values

List of values