A362417 - cp's OEIS frontend

A362417 Beginning with 1, smallest positive integer not yet in the sequence such that two adjacent digits A and B of the sequence (also ignoring commas between terms) produce a prime = A + 2B. This is the earliest infinitely extensible such sequence.

n	a(n)
1	1
2	3
3	5
4	7
5	20
6	11
7	9
8	13
9	15
10	19
11	50
12	111
13	30
14	113
15	51
16	31
17	35
18	37
19	53
20	57
21	59
22	70
23	115
24	73
25	75
26	91
27	95
28	97
29	201
30	119
31	120
32	130
33	131
34	135
35	137
36	301
37	150
38	151
39	153
40	157
41	311
42	159
43	191
44	195
45	197
46	313
47	501
48	315
49	319
50	511
51	320
52	1111
53	350
54	1113
55	513
56	515
57	351
58	353

[1, 3, 5, 7, 20, 11, 9, 13, 15, 19, 50, 111, 30, 113, 51, 31, 35, 37, 53, 57, 59, 70, 115, 73, 75, 91, 95, 97, 201, 119, 120, 130, 131, 135, 137, 301, 150, 151, 153, 157, 311, 159, 191, 195, 197, 313, 501, 315, 319, 511, 320, 1111, 350, 1113, 513, 515, 351, 353]

cp's OEIS Frontend

A362417 Beginning with 1, smallest positive integer not yet in the sequence such that two adjacent digits A and B of the sequence (also ignoring commas between terms) produce a prime = A + 2B. This is the earliest infinitely extensible such sequence.

Table of values

List of values