a(n) is the smallest prime q such that (q-p)/(r-q) = n, where p<q<r are consecutive primes (or 0 if none exist).

A179256

a(n) is the smallest prime q such that (q-p)/(r-q) = n, where p<q<r are consecutive primes (or 0 if none exist).

Terms

    a(0) =5a(1) =11a(2) =29a(3) =6421a(4) =149a(5) =521a(6) =84913a(7) =1949a(8) =1277a(9) =43391a(10) =1151a(11) =4547a(12) =933151a(13) =2999a(14) =6947a(15) =1568867a(16) =10007a(17) =32297a(18) =4131223a(19) =25301a(20) =78779a(21) =12809491a(22) =91079a(23) =28277a(24) =13626407a(25) =35729a(26) =117497a(27) =37305881a(28) =399851a(29) =102761

External references