A243488 a(n) = A126917(n+1) - A243069(n).

0, 0, 1, 0, 2, 0, 4, 3, 7, 0, 8, 0, 8, 6, 11, 0, 13, 0, 14, 10, 17, 0, 19, 8, 22, 17, 25, 0, 25, 0, 26, 19, 29, 13, 32, 0, 34, 26, 37, 0, 35, 0, 37, 27, 40, 0, 41, 13, 44, 33, 47, 0, 49, 23, 52, 39, 55, 0, 53, 0, 55, 41, 58, 27, 61, 0, 62, 46, 65, 0, 65, 0, 65, 48, 68, 22, 71, 0

Offset

1,5

Comments

Zeros occur at positions given by A006093 (primes minus 1).

The sequence sheds some light on behavior of A126917, please see the plot.

Links

Antti Karttunen, Table of n, a(n) for n = 1..10006

Formula

a(n) = A126917(n+1) - A243069(n).

Prog

(Scheme) (define (A243488 n) (- (A126917 (+ 1 n)) (A243069 n)))

Crossrefs

Cf. A006093, A126917, A243069, A243498.

Sequence in context: A095202 A343923 A291937 * A154849 A339261 A345232

Adjacent sequences: A243485 A243486 A243487 * A243489 A243490 A243491

Keyword

nonn

Author

Antti Karttunen, Jun 20 2014

Status

approved