A154734 - cp's OEIS frontend

A154734 Define k(0) = 2 and k(m) = m^2-k(m-1) for m >= 1. This is a list of those terms k(m) for which k(m)+1 and k(m)-1 are both in A008578 (primes including 1).

n	a(n)
1	2
2	4
3	12
4	138
5	822
6	2082
7	3918
8	21738
9	39342
10	62130
11	70878
12	106032
13	117372
14	129288
15	135462
16	182712
17	512580
18	524802
19	575130
20	682698
21	769422
22	799482
23	893118
24	1008912
25	1026030
26	1043292
27	1828830
28	2368578
29	2447580
30	3247428
31	3278082
32	3465030
33	4022868
34	4056978

[2, 4, 12, 138, 822, 2082, 3918, 21738, 39342, 62130, 70878, 106032, 117372, 129288, 135462, 182712, 512580, 524802, 575130, 682698, 769422, 799482, 893118, 1008912, 1026030, 1043292, 1828830, 2368578, 2447580, 3247428, 3278082, 3465030, 4022868, 4056978]

cp's OEIS Frontend

A154734 Define k(0) = 2 and k(m) = m^2-k(m-1) for m >= 1. This is a list of those terms k(m) for which k(m)+1 and k(m)-1 are both in A008578 (primes including 1).

Table of values

List of values