A272374 Numbers n such that A187202(n) is <= 0.
10, 14, 20, 22, 24, 26, 28, 34, 36, 38, 40, 46, 48, 50, 58, 60, 62, 63, 70, 74, 80, 82, 84, 86, 94, 96, 98, 99, 100, 105, 106, 117, 118, 120, 122, 134, 136, 138, 140, 142, 146, 152, 153, 154, 158, 160, 166, 170, 171, 174, 178, 180, 182, 184, 186, 189, 190, 192, 194, 196, 198, 200, 202, 206, 208, 214
Offset: 1
Keywords
Links
- R. J. Mathar, Table of n, a(n) for n = 1..5000
Programs
-
Mathematica
f[n_] := Block[{d = Divisors@ n}, Differences[d, Length@ d - 1][[1]]]; Select[ Range@ 215, f@# < 1&]
Extensions
Edited by N. J. A. Sloane, May 01 2016
Comments