Beach-Williams Pell numbers of type pqrs (p,q,r,s primes).

Terms

a(0) =40885a(1) =75205a(2) =79025a(3) =114985a(4) =152269a(5) =184705a(6) =193505a(7) =252025a(8) =258505a(9) =266305a(10) =271765a(11) =274025a(12) =280865a(13) =293225a(14) =294905a(15) =304525a(16) =309725a(17) =310985a(18) =315725a(19) =317645