Dispersion of the odd primes: a rectangular array read by downward antidiagonals.

Terms

a(0) =1a(1) =3a(2) =2a(3) =7a(4) =5a(5) =4a(6) =19a(7) =13a(8) =11a(9) =6a(10) =71a(11) =43a(12) =37a(13) =17a(14) =8a(15) =359a(16) =193a(17) =163a(18) =61a(19) =23a(20) =9a(21) =2423a(22) =1181a(23) =971a(24) =293a(25) =89a(26) =29a(27) =10a(28) =21589a(29) =9547