A073683 - cp's OEIS frontend

A073683 Group the primes such that the sum of each group is a prime. Each group from the second onwards should contain at least 3 primes: (2, 3), (5, 7, 11), (13, 17, 19, 23, 29), (31, 37, 41), (43, 47, 53, 59, 61), ... This is the sequence of the leading element in each group.

n	a(n)
1	2
2	5
3	13
4	31
5	43
6	67
7	79
8	97
9	131
10	179
11	199
12	257
13	293
14	313
15	359
16	389
17	409
18	431
19	443
20	467
21	491
22	509
23	541
24	571
25	601
26	991
27	1163
28	1523
29	1549
30	1607
31	1627
32	1723
33	1747
34	1787
35	1831
36	1873
37	1907
38	2039
39	2243
40	2269
41	2287
42	2333
43	2347
44	2389
45	2459
46	2521
47	2543
48	2557
49	2593

[2, 5, 13, 31, 43, 67, 79, 97, 131, 179, 199, 257, 293, 313, 359, 389, 409, 431, 443, 467, 491, 509, 541, 571, 601, 991, 1163, 1523, 1549, 1607, 1627, 1723, 1747, 1787, 1831, 1873, 1907, 2039, 2243, 2269, 2287, 2333, 2347, 2389, 2459, 2521, 2543, 2557, 2593]

cp's OEIS Frontend

A073683 Group the primes such that the sum of each group is a prime. Each group from the second onwards should contain at least 3 primes: (2, 3), (5, 7, 11), (13, 17, 19, 23, 29), (31, 37, 41), (43, 47, 53, 59, 61), ... This is the sequence of the leading element in each group.

Table of values

List of values