A137602 - cp's OEIS frontend

A137602 a(n) is the smallest number m such that sigma(m)=n*pi(m), or 0 if no such m exists.

n	a(n)
2	3
3	2
4	6
5	38
6	44
7	92
8	66
9	174
10	108
11	688
12	120
13	954
14	300
15	2744
16	3186
17	2424
18	2070
19	2904
20	1080
21	3432
22	17004
23	1042810
24	8976
25	32232
26	20916
27	19260
28	76908
29	5284804
30	98064
31	281600
32	31320
33	4070868
34	3013472
35	69720
36	1126380
37	7272564
38	52920
39	316080
40	336840

[3, 2, 6, 38, 44, 92, 66, 174, 108, 688, 120, 954, 300, 2744, 3186, 2424, 2070, 2904, 1080, 3432, 17004, 1042810, 8976, 32232, 20916, 19260, 76908, 5284804, 98064, 281600, 31320, 4070868, 3013472, 69720, 1126380, 7272564, 52920, 316080, 336840]

cp's OEIS Frontend

A137602 a(n) is the smallest number m such that sigma(m)=n*pi(m), or 0 if no such m exists.

Table of values

List of values