A066893 Numbers k such that k divides (prime(3*k) - prime(2*k)).
1, 2, 6, 21, 25, 32, 174, 400, 918, 960, 971, 987, 2374, 5928, 5935, 5942, 5977, 14838, 37259, 37282, 94154, 238309, 1556445, 4004112, 10308825, 10308837, 10309843, 10309906, 26627152, 68912912, 68913663, 68913687, 68914102, 68915077, 68915098, 68916054
Offset: 1
Keywords
Links
- Giovanni Resta, Table of n, a(n) for n = 1..51
Programs
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Mathematica
Select[Range[10^6], Mod[Prime[3 #] - Prime[2 #], #] == 0 &]
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PARI
isok(k) = { (prime(3*k)-prime(2*k)) % k == 0 } \\ Harry J. Smith, Apr 05 2010
Extensions
More terms from Robert G. Wilson v, Jan 26 2002
a(23) from Harry J. Smith, Apr 05 2010
a(24)-a(36) from Giovanni Resta, Jun 18 2018