Quintan primes: p = (x^5 - y^5)/(x - y).

Terms

a(0) =5a(1) =31a(2) =211a(3) =1031a(4) =2801a(5) =4651a(6) =5261a(7) =6841a(8) =8431a(9) =14251a(10) =17891a(11) =20101a(12) =21121a(13) =22621a(14) =22861a(15) =26321a(16) =30941a(17) =33751a(18) =36061a(19) =41141a(20) =46021a(21) =48871a(22) =51001a(23) =58411a(24) =61051a(25) =88741a(26) =92821a(27) =103801a(28) =109141a(29) =114641