n(k) is the minimum n that requires at least k to make 2*Prime[n]+Prime[k] a prime.

Terms

a(0) =3a(1) =11a(2) =5a(3) =47a(4) =17a(5) =106a(6) =64a(7) =157a(8) =133a(9) =26a(10) =236a(11) =308a(12) =72a(13) =496a(14) =122a(15) =207a(16) =152a(17) =142a(18) =197a(19) =259a(20) =514a(21) =497a(22) =1266a(23) =1482a(24) =2005a(25) =2193a(26) =1380a(27) =964a(28) =3662a(29) =534