A031170 - OEIS

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A031170

a(n) = prime(n+8) - prime(n).

11

21, 26, 26, 30, 30, 30, 30, 34, 36, 32, 36, 34, 32, 36, 36, 36, 38, 40, 36, 36, 36, 34, 44, 42, 40, 38, 46, 44, 48, 50, 40, 42, 42, 42, 42, 42, 40, 36, 44, 50, 48, 48, 42, 46, 44, 52, 46, 40, 42, 42, 44, 42, 42, 42, 50, 48, 44, 46, 54, 56, 64, 56, 46, 48, 54, 56, 48

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

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

FORMULA

a(n) = A000040(n+8) - A000040(n). - Zak Seidov, Mar 23 2011

MAPLE

ithprime(n+8)-ithprime(n);

MATHEMATICA

Table[Prime[n+8]-Prime[n], {n, 1, 100}] (* Harvey P. Dale, Mar 23 2011 *)

PROG

(Magma) [NthPrime(n+8)-NthPrime(n): n in [1..100] ]; // Vincenzo Librandi, Apr 23 2011

(Haskell)

a031170 n = a031170_list !! (n-1)

a031170_list = zipWith (-) (drop 8 a000040_list) a000040_list

-- Reinhard Zumkeller, Aug 23 2015

CROSSREFS

Cf. A001223, A031131, A031165, A031166, A031167, A031168, A031169, A031171, A031172.

Sequence in context: A147049 A219393 A020269 * A347394 A035700 A134935

Adjacent sequences: A031167 A031168 A031169 * A031171 A031172 A031173

KEYWORD

nonn

AUTHOR

STATUS

approved