A137800 - cp's OEIS frontend

A137800 Consider the first run of composites that contains at least two numbers whose largest prime factor is prime(n), n >= 2. a(n) is the second of these numbers.

n	a(n)
2	27
3	125
4	147
5	539
6	2197
7	2992
8	3249
9	50255
10	11774
11	15717
12	62271
13	265680
14	172000
15	34122
16	1133458
17	2313744
18	1060851
19	332387
20	1334232
21	404931
22	1388583
23	1357299
24	15800793
25	5516390
26	66896138
27	11962935
28	6085090
29	129761884
30	43216624
31	90972640

[27, 125, 147, 539, 2197, 2992, 3249, 50255, 11774, 15717, 62271, 265680, 172000, 34122, 1133458, 2313744, 1060851, 332387, 1334232, 404931, 1388583, 1357299, 15800793, 5516390, 66896138, 11962935, 6085090, 129761884, 43216624, 90972640]

cp's OEIS Frontend

A137800 Consider the first run of composites that contains at least two numbers whose largest prime factor is prime(n), n >= 2. a(n) is the second of these numbers.

Table of values

List of values