A334488 - cp's OEIS frontend

A334488 Numbers m for which p(m, 2)*p(m, 5) = p(m, 10), where p(m, b) is the period of repeating digits of 1/m in base b.

n	a(n)
1	1
2	2
3	4
4	31
5	62
6	124
7	601
8	1202
9	2404
10	2593
11	4808
12	5186
13	9616
14	10372
15	18631
16	20744
17	37262
18	41488
19	74524
20	82976
21	149048
22	165952
23	298096
24	331904
25	599479
26	1198958
27	2397916
28	204700049
29	409400098
30	466344409
31	668731841
32	818800196
33	932688818
34	1023500245
35	1337463682
36	1554449047

[1, 2, 4, 31, 62, 124, 601, 1202, 2404, 2593, 4808, 5186, 9616, 10372, 18631, 20744, 37262, 41488, 74524, 82976, 149048, 165952, 298096, 331904, 599479, 1198958, 2397916, 204700049, 409400098, 466344409, 668731841, 818800196, 932688818, 1023500245, 1337463682, 1554449047]

cp's OEIS Frontend

A334488 Numbers m for which p(m, 2)*p(m, 5) = p(m, 10), where p(m, b) is the period of repeating digits of 1/m in base b.

Table of values

List of values