Odd numbers congruent to 7 mod 8 such that (2^(h(-n)+2)-n) is a square, where h(-n) is the class number.

A029724

Odd numbers congruent to 7 mod 8 such that (2^(h(-n)+2)-n) is a square, where h(-n) is the class number.

Terms

    a(0) =7a(1) =15a(2) =23a(3) =31a(4) =39a(5) =47a(6) =55a(7) =63a(8) =71a(9) =79a(10) =87a(11) =103a(12) =127a(13) =135a(14) =151a(15) =175a(16) =183a(17) =199a(18) =207a(19) =223a(20) =247a(21) =255a(22) =271a(23) =295a(24) =343a(25) =367a(26) =375a(27) =463a(28) =487a(29) =511

External references