Triangle of primes associated with A083773.

Terms

a(0) =2a(1) =3a(2) =2a(3) =13a(4) =7a(5) =3a(6) =37a(7) =19a(8) =13a(9) =7a(10) =541a(11) =271a(12) =181a(13) =109a(14) =31a(15) =436801a(16) =218401a(17) =145601a(18) =109201a(19) =54601a(20) =193a(21) =266401a(22) =133201a(23) =88801a(24) =66601a(25) =53281a(26) =26641a(27) =1201a(28) =4944149281a(29) =2472074641