Pseudo-safe-primes: numbers n = 2m+1 with 2^m congruent to n+1 or 3n-1 modulo m*n, but m composite.

Terms

a(0) =683a(1) =1123a(2) =1291a(3) =4931a(4) =16963a(5) =25603a(6) =70667a(7) =110491a(8) =121403a(9) =145771a(10) =166667a(11) =301703a(12) =424843a(13) =529547a(14) =579883a(15) =696323a(16) =715523a(17) =854467a(18) =904103a(19) =1112339a(20) =1175723a(21) =1234187a(22) =1306667a(23) =1444523a(24) =2146043a(25) =2651687a(26) =2796203a(27) =2882183a(28) =3069083a(29) =3216931