Numbers k such that (28*10^k + 149)/3 is prime.

Terms

a(0) =0a(1) =2a(2) =4a(3) =6a(4) =10a(5) =20a(6) =40a(7) =42a(8) =46a(9) =60a(10) =68a(11) =128a(12) =516a(13) =816a(14) =1062a(15) =3204a(16) =3682a(17) =4964a(18) =5722a(19) =11442a(20) =17856a(21) =41058a(22) =60180a(23) =85500a(24) =104972