A100777 - cp's OEIS frontend

A100777 Square-factorial numbers: a(1) = 1, a(n+1) = a(n) * largest square divisor of (n+1).

n	a(n)
1	1
2	1
3	1
4	4
5	4
6	4
7	4
8	16
9	144
10	144
11	144
12	576
13	576
14	576
15	576
16	9216
17	9216
18	82944
19	82944
20	331776
21	331776
22	331776
23	331776
24	1327104
25	33177600
26	33177600
27	298598400
28	1194393600
29	1194393600
30	1194393600
31	1194393600
32	19110297600
33	19110297600
34	19110297600
35	19110297600

[1, 1, 1, 4, 4, 4, 4, 16, 144, 144, 144, 576, 576, 576, 576, 9216, 9216, 82944, 82944, 331776, 331776, 331776, 331776, 1327104, 33177600, 33177600, 298598400, 1194393600, 1194393600, 1194393600, 1194393600, 19110297600, 19110297600, 19110297600, 19110297600]

cp's OEIS Frontend

A100777 Square-factorial numbers: a(1) = 1, a(n+1) = a(n) * largest square divisor of (n+1).

Table of values

List of values