A330775 - cp's OEIS frontend

A330775 Irregular triangle read by rows: row n gives the primes of the form m*prime(n)+1 where m is an even number <= prime(n) and prime(n) is the n-th prime, or 0 if no such prime exists for any n.

n	a(n)
1	5
2	7
3	11
4	29
5	43
6	23
7	67
8	89
9	53
10	79
11	131
12	157
13	103
14	137
15	239
16	191
17	229
18	47
19	139
20	277
21	461
22	59
23	233
24	349
25	523
26	311
27	373
28	683
29	149
30	223
31	593
32	1259
33	83
34	739
35	821
36	1231
37	1559
38	173
39	431
40	947
41	1033
42	1291
43	1549
44	1721
45	283
46	659
47	941
48	1129
49	1223
50	1693
51	1787
52	2069
53	107
54	743
55	1061
56	1697
57	2333

[5, 7, 11, 29, 43, 23, 67, 89, 53, 79, 131, 157, 103, 137, 239, 191, 229, 47, 139, 277, 461, 59, 233, 349, 523, 311, 373, 683, 149, 223, 593, 1259, 83, 739, 821, 1231, 1559, 173, 431, 947, 1033, 1291, 1549, 1721, 283, 659, 941, 1129, 1223, 1693, 1787, 2069, 107, 743, 1061, 1697, 2333]

cp's OEIS Frontend

A330775 Irregular triangle read by rows: row n gives the primes of the form m*prime(n)+1 where m is an even number <= prime(n) and prime(n) is the n-th prime, or 0 if no such prime exists for any n.

Table of values

List of values