A029565 Quasi-Carmichael numbers to base -5: squarefree composites n such that prime p|n ==> p+5|n+5.

715, 1015, 5467, 14539, 16555, 16891, 17155, 22351, 32395, 36295, 41595, 42427, 45787, 47515, 53815, 62491, 70219, 100219, 114835, 115843, 131035, 145915, 153049, 160771, 191851, 204295, 217147, 220891, 240331, 267235, 267691, 321745, 356155

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Links

• Giovanni Resta, Table of n, a(n) for n = 1..6078 (terms < 10^12)
• Index entries for sequences related to Carmichael numbers.

Programs

Mathematica

qcp[n_, d_] := Block[{p, e}, {p, e} = Transpose@FactorInteger@n;
Length[p] > 1 && Max[e] == 1 && And @@ IntegerQ /@ ((n + d)/(p + d))]; Select[Range[10^6], qcp[#, 5] &] (* Giovanni Resta, May 21 2013 *)