Lesser of twin primes of the form k^1 + k^2 + k^3 + k^4 - 1.

Terms

a(0) =3a(1) =29a(2) =22619a(3) =837929a(4) =3835259a(5) =6377549a(6) =16007039a(7) =30397349a(8) =147753209a(9) =745720139a(10) =987082979a(11) =2439903209a(12) =3276517919a(13) =4178766089a(14) =11468884079a(15) =58714318139a(16) =72695416559a(17) =418374010739a(18) =788251653689a(19) =829180295189