A226442 - cp's OEIS frontend

A226442 a(n) = smallest index m such that smallest prime factor of m-th triangular number is prime(n).

n	a(n)
1	3
2	2
3	10
4	13
5	22
6	298
7	526
8	37
9	46
10	58
11	61
12	73
13	82
14	3397
15	2866
16	106
17	3481
18	3721
19	5293
20	5041
21	7081
22	157
23	166
24	178
25	193
26	10201
27	14317
28	23326
29	23761
30	226
31	17398
32	262
33	19042
34	277
35	24286
36	38806
37	313
38	45802
39	29893
40	346
41	358
42	32761
43	382
44	46126
45	52993
46	397
47	421
48	68461

[3, 2, 10, 13, 22, 298, 526, 37, 46, 58, 61, 73, 82, 3397, 2866, 106, 3481, 3721, 5293, 5041, 7081, 157, 166, 178, 193, 10201, 14317, 23326, 23761, 226, 17398, 262, 19042, 277, 24286, 38806, 313, 45802, 29893, 346, 358, 32761, 382, 46126, 52993, 397, 421, 68461]

cp's OEIS Frontend

A226442 a(n) = smallest index m such that smallest prime factor of m-th triangular number is prime(n).

Table of values

List of values