A137691 - cp's OEIS frontend

A137691 Indices m such that A128646(m)+1 is prime, where A128646 = denominators of partial sums of 1/(prime(i)-1).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	10
8	11
9	12
10	13
11	14
12	18
13	38
14	376
15	377
16	378
17	379
18	380
19	381
20	382
21	383
22	384
23	385
24	475
25	476
26	477
27	478
28	479
29	488
30	489
31	490
32	491
33	492
34	493
35	858
36	859
37	860
38	861
39	862
40	863
41	864
42	2670
43	3261
44	3262
45	3263
46	3264
47	3265
48	4819
49	6034
50	6035
51	6036
52	6037
53	6038

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 14, 18, 38, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 475, 476, 477, 478, 479, 488, 489, 490, 491, 492, 493, 858, 859, 860, 861, 862, 863, 864, 2670, 3261, 3262, 3263, 3264, 3265, 4819, 6034, 6035, 6036, 6037, 6038]

cp's OEIS Frontend

A137691 Indices m such that A128646(m)+1 is prime, where A128646 = denominators of partial sums of 1/(prime(i)-1).

Table of values

List of values