A339480 - cp's OEIS frontend

A339480 Numbers of the form (k^2 - 2) / 2 where k - 1 and k + 1 are both odd composite numbers.

n	a(n)
1	337
2	577
3	1249
4	1567
5	2047
6	2887
7	3697
8	4231
9	4417
10	6727
11	6961
12	7199
13	7441
14	7687
15	8977
16	10081
17	10367
18	10657
19	11857
20	12799
21	14449
22	15487
23	16927
24	17297
25	17671
26	20401
27	20807
28	21217
29	21631
30	22897
31	23327
32	23761
33	24199
34	27847
35	29767
36	30257
37	30751
38	32257
39	33799
40	35377
41	37537
42	40897

[337, 577, 1249, 1567, 2047, 2887, 3697, 4231, 4417, 6727, 6961, 7199, 7441, 7687, 8977, 10081, 10367, 10657, 11857, 12799, 14449, 15487, 16927, 17297, 17671, 20401, 20807, 21217, 21631, 22897, 23327, 23761, 24199, 27847, 29767, 30257, 30751, 32257, 33799, 35377, 37537, 40897]

cp's OEIS Frontend

A339480 Numbers of the form (k^2 - 2) / 2 where k - 1 and k + 1 are both odd composite numbers.

Table of values

List of values