A075108 - cp's OEIS frontend

A075108 First integer reached when starting with n/floor(log_2(n)) and iterating the map x -> x*ceiling(x) A075107(n) times, or -1 if no integer is ever reached.

n	a(n)
2	2
3	3
4	2
5	60
6	3
7	14
8	8
9	3
10	1484710602474311520
11	220
12	4
13	227370
14	560
15	5
16	4
17	218790
18	268065
19	570
20	5
21	1008
22	33
23	1458660
24	6
25	1925
26	2093
27	2268
28	7
29	58
30	60
31	62
32	2016
33	494764640798827359861461484
34	5220768
35	7

[2, 3, 2, 60, 3, 14, 8, 3, 1484710602474311520, 220, 4, 227370, 560, 5, 4, 218790, 268065, 570, 5, 1008, 33, 1458660, 6, 1925, 2093, 2268, 7, 58, 60, 62, 2016, 494764640798827359861461484, 5220768, 7]

cp's OEIS Frontend

A075108 First integer reached when starting with n/floor(log_2(n)) and iterating the map x -> x*ceiling(x) A075107(n) times, or -1 if no integer is ever reached.

Table of values

List of values