A194269 - cp's OEIS frontend

A194269 Numbers j such that Sum_{i=1..k} d(i)^i = j+1 for some k where d(i) is the sorted list of divisors of j.

n	a(n)
1	4
2	9
3	25
4	49
5	68
6	121
7	169
8	289
9	361
10	529
11	841
12	961
13	1369
14	1681
15	1849
16	2209
17	2809
18	3481
19	3721
20	4489
21	5041
22	5329
23	6241
24	6889
25	7921
26	9409
27	10201
28	10609
29	11449
30	11881
31	12769
32	16129
33	17161
34	17500
35	18769
36	19321
37	22201
38	22801
39	24649
40	26569
41	27889

[4, 9, 25, 49, 68, 121, 169, 289, 361, 529, 841, 961, 1369, 1681, 1849, 2209, 2809, 3481, 3721, 4489, 5041, 5329, 6241, 6889, 7921, 9409, 10201, 10609, 11449, 11881, 12769, 16129, 17161, 17500, 18769, 19321, 22201, 22801, 24649, 26569, 27889]

cp's OEIS Frontend

A194269 Numbers j such that Sum_{i=1..k} d(i)^i = j+1 for some k where d(i) is the sorted list of divisors of j.

Table of values

List of values