Smallest weak prime in base 2n+1.

Terms

a(0) =2a(1) =83a(2) =223a(3) =2789a(4) =3347a(5) =4751a(6) =484439a(7) =10513a(8) =10909a(9) =2823167a(10) =68543a(11) =181141a(12) =6139219a(13) =488651a(14) =356479a(15) =399946711a(16) =22549349a(17) =8371249a(18) =660040873a(19) =12088631a(20) =3352003a(21) =234606268969a(22) =84343813a(23) =82751411a(24) =153722088497a(25) =141451831a(26) =11085190183a(27) =350552595007a(28) =535946951a(29) =658716229