A135354 - cp's OEIS frontend

A135354 a(0)=1, a(n) = largest divisor of n! that is coprime to a(n-1).

n	a(n)
0	1
1	1
2	2
3	3
4	8
5	15
6	16
7	315
8	128
9	2835
10	256
11	155925
12	1024
13	6081075
14	2048
15	638512875
16	32768
17	10854718875
18	65536
19	1856156927625
20	262144
21	194896477400625
22	524288
23	49308808782358125
24	4194304
25	3698160658676859375
26	8388608
27	1298054391195577640625
28	33554432
29	263505041412702261046875
30	67108864

[1, 1, 2, 3, 8, 15, 16, 315, 128, 2835, 256, 155925, 1024, 6081075, 2048, 638512875, 32768, 10854718875, 65536, 1856156927625, 262144, 194896477400625, 524288, 49308808782358125, 4194304, 3698160658676859375, 8388608, 1298054391195577640625, 33554432, 263505041412702261046875, 67108864]

cp's OEIS Frontend

A135354 a(0)=1, a(n) = largest divisor of n! that is coprime to a(n-1).

Table of values

List of values