Smallest weak prime in base n.

Terms

a(0) =127a(1) =2a(2) =373a(3) =83a(4) =28151a(5) =223a(6) =6211a(7) =2789a(8) =294001a(9) =3347a(10) =20837899a(11) =4751a(12) =6588721a(13) =484439a(14) =862789a(15) =10513a(16) =2078920243a(17) =10909a(18) =169402249a(19) =2823167a(20) =267895961a(21) =68543a(23) =181141a(24) =121660507a(25) =6139219a(26) =11646280537a(27) =488651