A059460 - cp's OEIS frontend

A059460 Iteration of unitary-sigma function: a(1) = 2, a(n) = usigma(a(n-1)).

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	12
7	20
8	30
9	72
10	90
11	180
12	300
13	520
14	756
15	1120
16	1584
17	2040
18	3888
19	4148
20	5580
21	9600
22	13416
23	22176
24	31680
25	46800
26	61880
27	108864
28	126880
29	171864
30	276480
31	344232
32	492480
33	639600
34	1039584
35	1663200
36	2306304
37	3454080
38	6390144

[2, 3, 4, 5, 6, 12, 20, 30, 72, 90, 180, 300, 520, 756, 1120, 1584, 2040, 3888, 4148, 5580, 9600, 13416, 22176, 31680, 46800, 61880, 108864, 126880, 171864, 276480, 344232, 492480, 639600, 1039584, 1663200, 2306304, 3454080, 6390144]

cp's OEIS Frontend

A059460 Iteration of unitary-sigma function: a(1) = 2, a(n) = usigma(a(n-1)).

Table of values

List of values