A249763 - cp's OEIS frontend

A249763 Numbers k such that sigma(k) + 2 is prime.

n	a(n)
1	1
2	2
3	8
4	18
5	49
6	72
7	98
8	128
9	196
10	200
11	242
12	288
13	361
14	392
15	441
16	676
17	968
18	1369
19	1521
20	1568
21	1764
22	1800
23	2178
24	2401
25	2450
26	2888
27	3200
28	3362
29	3528
30	3969
31	4232
32	5000
33	5476
34	5776
35	5929
36	6241
37	6272
38	7056
39	7200
40	7442
41	7688
42	7938
43	8281
44	8450
45	8649
46	9025
47	9522
48	9604

[1, 2, 8, 18, 49, 72, 98, 128, 196, 200, 242, 288, 361, 392, 441, 676, 968, 1369, 1521, 1568, 1764, 1800, 2178, 2401, 2450, 2888, 3200, 3362, 3528, 3969, 4232, 5000, 5476, 5776, 5929, 6241, 6272, 7056, 7200, 7442, 7688, 7938, 8281, 8450, 8649, 9025, 9522, 9604]

cp's OEIS Frontend

A249763 Numbers k such that sigma(k) + 2 is prime.

Table of values

List of values