A128040 - cp's OEIS frontend

A128040 a(n) = product of the primes which are <= the n-th squarefree positive integer. a(n) also is the LCM of the first n squarefree positive integers.

n	a(n)
1	1
2	2
3	6
4	30
5	30
6	210
7	210
8	2310
9	30030
10	30030
11	30030
12	510510
13	9699690
14	9699690
15	9699690
16	223092870
17	223092870
18	6469693230
19	6469693230
20	200560490130
21	200560490130
22	200560490130
23	200560490130
24	7420738134810
25	7420738134810

[1, 2, 6, 30, 30, 210, 210, 2310, 30030, 30030, 30030, 510510, 9699690, 9699690, 9699690, 223092870, 223092870, 6469693230, 6469693230, 200560490130, 200560490130, 200560490130, 200560490130, 7420738134810, 7420738134810]

cp's OEIS Frontend

A128040 a(n) = product of the primes which are <= the n-th squarefree positive integer. a(n) also is the LCM of the first n squarefree positive integers.

Table of values

List of values