a(0) = 2; for n > 0, a(n) is the smallest prime that differs from the next prime by 2n and is not part of a run of 3 or more consecutive primes in arithmetic progression, or -1 if no such prime exists.

A368640

a(0) = 2; for n > 0, a(n) is the smallest prime that differs from the next prime by 2n and is not part of a run of 3 or more consecutive primes in arithmetic progression, or -1 if no such prime exists.

Terms

    a(0) =2a(1) =11a(2) =7a(3) =23a(4) =89a(5) =139a(6) =467a(7) =113a(8) =1831a(9) =523a(10) =887a(11) =1129a(12) =1669a(13) =2477a(14) =2971a(15) =4297a(16) =5591a(17) =1327a(18) =9551a(19) =30593a(20) =19333a(21) =16141a(22) =15683a(23) =81463a(24) =28229a(25) =31907a(26) =19609a(27) =35617a(28) =82073a(29) =44293

External references