Product of the n-th cousin prime pair.

Terms

a(0) =21a(1) =77a(2) =221a(3) =437a(4) =1517a(5) =2021a(6) =4757a(7) =6557a(8) =9797a(9) =11021a(10) =12317a(11) =16637a(12) =27221a(13) =38021a(14) =50621a(15) =53357a(16) =77837a(17) =95477a(18) =99221a(19) =123197a(20) =145157a(21) =159197a(22) =194477a(23) =210677a(24) =216221a(25) =239117a(26) =250997a(27) =378221a(28) =416021a(29) =455621