The primes associated with A239727.

Terms

a(0) =3a(1) =17a(2) =73a(3) =191a(4) =709a(5) =1289a(6) =3181a(7) =5449a(8) =7681a(9) =17477a(10) =33889a(11) =87961a(12) =437389a(13) =2290573a(14) =7160227a(15) =10429681a(16) =19196227a(17) =24504049a(18) =47577857a(19) =70513979a(20) =82605937a(21) =156671243a(22) =271785793a(23) =328939937a(24) =568119509a(25) =1125978241a(26) =1534657963a(27) =1710749497a(28) =4936728373a(29) =7647104183