A240537 - cp's OEIS frontend

A240537 Let a(n) be the least k such that in the prime power factorization of k! the exponents of primes p_1, ...,p_n are even, while the exponent of p_(n+1) is odd.

n	a(n)
1	12
2	6
3	10
4	20
5	48
6	54
7	338
8	875
9	2849
10	1440
11	3841
12	816
13	59583
14	101755
15	40465
16	37514
17	409026
18	268836
19	591360
20	855368
21	5493420
22	9627251
23	28953290
24	14557116
25	7336812
26	1475128
27	127632241
28	531296823
29	3028478192
30	2435868325
31	1092228841
32	32377733790
33	472077979

[12, 6, 10, 20, 48, 54, 338, 875, 2849, 1440, 3841, 816, 59583, 101755, 40465, 37514, 409026, 268836, 591360, 855368, 5493420, 9627251, 28953290, 14557116, 7336812, 1475128, 127632241, 531296823, 3028478192, 2435868325, 1092228841, 32377733790, 472077979]

cp's OEIS Frontend

A240537 Let a(n) be the least k such that in the prime power factorization of k! the exponents of primes p_1, ...,p_n are even, while the exponent of p_(n+1) is odd.

Table of values

List of values