A247604 - cp's OEIS frontend

A247604 Least integer m > 0 with pi(m*n) = sigma(m+n), where pi(.) and sigma(.) are given by A000720 and A000203.

n	a(n)
5	18
6	11
7	360
8	251
9	168
10	36
11	6
12	285
13	1185
14	792
15	29
16	11
17	245078
18	5
19	1869
20	46074
21	573
22	42863
23	11
24	5
25	8129
26	60806
27	1443
28	452
29	15
30	39298437
31	386891
32	1041920
33	1290489
34	17630
35	35569
36	10
37	8174777
38	3152500
39	4291325
40	57880072
41	55991485
42	127358
43	93462807
44	93314912

[18, 11, 360, 251, 168, 36, 6, 285, 1185, 792, 29, 11, 245078, 5, 1869, 46074, 573, 42863, 11, 5, 8129, 60806, 1443, 452, 15, 39298437, 386891, 1041920, 1290489, 17630, 35569, 10, 8174777, 3152500, 4291325, 57880072, 55991485, 127358, 93462807, 93314912]

cp's OEIS Frontend

A247604 Least integer m > 0 with pi(m*n) = sigma(m+n), where pi(.) and sigma(.) are given by A000720 and A000203.

Table of values

List of values