Primes p of Erdos-Selfridge class 4+ with largest prime factor of p+1 not of class 3+.

Terms

a(0) =3181a(1) =4513a(2) =4957a(3) =6067a(4) =7177a(5) =8731a(6) =9397a(7) =10433a(8) =13171a(9) =14947a(10) =15761a(11) =17389a(12) =19387a(13) =19609a(14) =22051a(15) =22273a(16) =22453a(17) =22717a(18) =23531a(19) =23753a(20) =24197a(21) =26161a(22) =27823a(23) =28711a(24) =37369a(25) =37591a(26) =38183a(27) =38923a(28) =39293a(29) =40993