Primes of the form 2520k + 1 for some k.

Terms

a(0) =2521a(1) =7561a(2) =12601a(3) =15121a(4) =20161a(5) =30241a(6) =35281a(7) =42841a(8) =45361a(9) =47881a(10) =55441a(11) =65521a(12) =68041a(13) =78121a(14) =93241a(15) =100801a(16) =110881a(17) =126001a(18) =128521a(19) =131041a(20) =141121a(21) =146161a(22) =151201a(23) =156241a(24) =158761a(25) =161281a(26) =176401a(27) =178921a(28) =186481a(29) =196561