a(n) is the smallest prime q such that (r-q)/(q-p) = n, where p<q<r are consecutive primes (or 0 if no such prime exists).

A179210

a(n) is the smallest prime q such that (r-q)/(q-p) = n, where p<q<r are consecutive primes (or 0 if no such prime exists).

Terms

    a(0) =5a(1) =3a(2) =31a(3) =8123a(4) =139a(5) =199a(6) =45439a(7) =1933a(8) =523a(9) =156157a(10) =1951a(11) =1669a(12) =480209a(13) =2971a(14) =7759a(15) =2181737a(16) =12163a(17) =28351a(18) =6012899a(19) =20809a(20) =16141a(21) =3933599a(22) =163063a(23) =86629a(24) =13626257a(25) =25471a(26) =40639a(27) =60487759a(28) =79699a(29) =149629

External references