Subtract 1 from the terms of A256407.

Terms

a(0) =2a(1) =197a(2) =269a(3) =521a(4) =569a(5) =599a(6) =821a(7) =881a(8) =1061a(9) =1949a(10) =2129a(11) =2267a(12) =2309a(13) =2591a(14) =2969a(15) =3167a(16) =5021a(17) =5501a(18) =6701a(19) =7349a(20) =9437a(21) =10037a(22) =10427a(23) =10499a(24) =14009a(25) =14561a(26) =15287a(27) =16649a(28) =17027a(29) =17957