A098417 A098414(n) - (A007529(n) + A098415(n))/2.

-1, 1, -1, 1, -1, 1, -1, 1, 1, -1, 1, -1, -1, 1, 1, -1, 1, 1, -1, -1, 1, -1, 1, -1, -1, 1, 1, -1, 1, -1, 1, -1, -1, 1, -1, 1, -1, 1, -1, 1, -1, -1, 1, 1, 1, 1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, -1, 1, -1, 1, 1, 1, -1, 1, 1, -1, 1, -1, -1, 1, -1, -1, -1, 1, 1, -1, -1, 1, -1, -1, -1, 1, -1, 1, 1, -1

Offset

1,1

Comments

(A007529(n),2*A098416(n)+a(n), A098415(n)) is a prime triple (p,q,r) with p<q<r=p+6.

Links

Table of n, a(n) for n=1..86.

Eric Weisstein's World of Mathematics, Prime Triplet

Crossrefs

Sequence in context: A165326 A143621 A292117 * A143622 A246016 A306638

Adjacent sequences: A098414 A098415 A098416 * A098418 A098419 A098420

Keyword

sign

Author

Reinhard Zumkeller, Sep 07 2004

Status

approved