A136356 - cp's OEIS frontend

A136356 Increasing sequence obtained by union of two sequences A136353 and {b(n)}, where b(n) is the smallest composite number m such that m-1 is prime and the set of distinct prime factors of m consists of the first n primes.

n	a(n)
1	4
2	6
3	9
4	15
5	30
6	105
7	420
8	1155
9	2310
10	15015
11	30030
12	255255
13	1021020
14	4849845
15	19399380
16	111546435
17	669278610
18	9704539845
19	38818159380
20	100280245065
21	601681470390
22	14841476269620
23	18551845337025
24	152125131763605

[4, 6, 9, 15, 30, 105, 420, 1155, 2310, 15015, 30030, 255255, 1021020, 4849845, 19399380, 111546435, 669278610, 9704539845, 38818159380, 100280245065, 601681470390, 14841476269620, 18551845337025, 152125131763605]

cp's OEIS Frontend

A136356 Increasing sequence obtained by union of two sequences A136353 and {b(n)}, where b(n) is the smallest composite number m such that m-1 is prime and the set of distinct prime factors of m consists of the first n primes.

Table of values

List of values