A356221 - cp's OEIS frontend

A356221 Position of second appearance of 2n in the sequence of prime gaps A001223; if 2n does not appear at least twice, a(n) = -1.

n	a(n)
1	3
2	6
3	11
4	72
5	42
6	47
7	62
8	295
9	180
10	259
11	297
12	327
13	446
14	462
15	650
16	1315
17	1059
18	1532
19	4052
20	2344
21	3732
22	3861
23	8805
24	7234
25	4754
26	2810
27	4231
28	14124
29	5949
30	9834
31	17200
32	10229
33	19724
34	25248
35	15927
36	30765
37	42673
38	28593
39	24554
40	50523
41	44227
42	44390
43	29040
44	89715
45	47350

[3, 6, 11, 72, 42, 47, 62, 295, 180, 259, 297, 327, 446, 462, 650, 1315, 1059, 1532, 4052, 2344, 3732, 3861, 8805, 7234, 4754, 2810, 4231, 14124, 5949, 9834, 17200, 10229, 19724, 25248, 15927, 30765, 42673, 28593, 24554, 50523, 44227, 44390, 29040, 89715, 47350]

cp's OEIS Frontend

A356221 Position of second appearance of 2n in the sequence of prime gaps A001223; if 2n does not appear at least twice, a(n) = -1.

Table of values

List of values