A099771 - cp's OEIS frontend

A099771 Smallest n-aspiring number. That is, a(n) = smallest k such that s^(n)(k) is perfect but s^(n-1)(k) is not, where s(k) is the sum of the aliquot parts of k and s^(i) means iterate s i times.

n	a(n)
1	25
2	95
3	417
4	675
5	2541
6	3888
7	3528
8	16256
9	13984
10	11312
11	10648
12	10688
13	6672
14	15364
15	20476
16	12288
17	12636
18	32216
19	33304
20	33896
21	34504
22	38660
23	31824
24	15792
25	62296
26	67304
27	49120
28	58104
29	102740
30	82120
31	84704
32	53680

[25, 95, 417, 675, 2541, 3888, 3528, 16256, 13984, 11312, 10648, 10688, 6672, 15364, 20476, 12288, 12636, 32216, 33304, 33896, 34504, 38660, 31824, 15792, 62296, 67304, 49120, 58104, 102740, 82120, 84704, 53680]

cp's OEIS Frontend

A099771 Smallest n-aspiring number. That is, a(n) = smallest k such that s^(n)(k) is perfect but s^(n-1)(k) is not, where s(k) is the sum of the aliquot parts of k and s^(i) means iterate s i times.

Table of values

List of values