Numbers k such that A048138(k) is a prime and sets a new record for such primes.

Terms

a(0) =6a(1) =21a(2) =31a(3) =79a(4) =121a(5) =265a(6) =271a(7) =379a(8) =541a(9) =631a(10) =1051a(11) =1351a(12) =1597a(13) =1711a(14) =2071a(15) =2401a(16) =2551a(17) =2761a(18) =2881a(19) =2941a(20) =3811a(21) =4111a(22) =4471a(23) =4531a(24) =4621a(25) =5251a(26) =6091a(27) =8341a(28) =8371a(29) =8401