Largest prime == 7 (mod 8) with class number 2n+1.

Terms

a(0) =7a(1) =31a(2) =127a(3) =487a(4) =1423a(5) =1303a(6) =2143a(7) =2647a(8) =4447a(9) =5527a(10) =5647a(11) =6703a(12) =5503a(13) =11383a(14) =8863a(15) =13687a(16) =13183a(17) =12007a(18) =22807a(19) =18127a(20) =21487a(21) =22303a(22) =29863a(23) =25303a(24) =27127