A349622 - cp's OEIS frontend

A349622 Numbers k for which 2k-1 can be obtained with successive prime shifts towards larger primes (by iterating A003961, starting from k).

n	a(n)
1	1
2	2
3	3
4	7
5	19
6	25
7	26
8	31
9	33
10	37
11	79
12	93
13	97
14	139
15	157
16	199
17	211
18	229
19	271
20	307
21	331
22	337
23	367
24	379
25	439
26	499
27	547
28	577
29	601
30	607
31	619
32	661
33	691
34	727
35	811
36	829
37	841
38	877
39	937
40	967
41	979
42	997
43	1009
44	1034
45	1069
46	1171
47	1237
48	1279
49	1297
50	1399
51	1429
52	1459
53	1531
54	1609
55	1627
56	1657
57	1759
58	1867
59	2011
60	2029
61	2089
62	2131
63	2137

[1, 2, 3, 7, 19, 25, 26, 31, 33, 37, 79, 93, 97, 139, 157, 199, 211, 229, 271, 307, 331, 337, 367, 379, 439, 499, 547, 577, 601, 607, 619, 661, 691, 727, 811, 829, 841, 877, 937, 967, 979, 997, 1009, 1034, 1069, 1171, 1237, 1279, 1297, 1399, 1429, 1459, 1531, 1609, 1627, 1657, 1759, 1867, 2011, 2029, 2089, 2131, 2137]

cp's OEIS Frontend

A349622 Numbers k for which 2k-1 can be obtained with successive prime shifts towards larger primes (by iterating A003961, starting from k).

Table of values

List of values