A031168 - OEIS

A031168

a(n) = prime(n+6) - prime(n).

15, 16, 18, 22, 20, 24, 24, 24, 24, 24, 28, 24, 26, 28, 26, 26, 24, 28, 30, 30, 30, 28, 26, 24, 30, 30, 34, 32, 40, 38, 30, 32, 30, 34, 30, 30, 34, 30, 30, 26, 32, 42, 36, 36, 36, 40, 30, 28, 30, 34, 36, 32, 36, 30, 26, 30, 38, 40, 36, 36, 48, 44, 40, 38, 40, 42, 36

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OFFSET

1,1

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

MAPLE

seq(ithprime(n+6)-ithprime(n), n=1..70);

MATHEMATICA

a=6; t=Array[Prime, 123]; Drop[t, a]-Drop[t, -a] (* Vladimir Joseph Stephan Orlovsky, Aug 13 2009 *)

Last[#]-First[#]&/@Partition[Prime[Range[80]], 7, 1] (* Harvey P. Dale, Jan 12 2012 *)

PROG

(Magma) [NthPrime(n+6)-NthPrime(n): n in [1..100] ]; // Vincenzo Librandi, Apr 23 2011