Dispersion of A047209, (numbers >1 and congruent to 1 or 4 mod 5), by antidiagonals.

Terms

a(0) =1a(1) =4a(2) =2a(3) =11a(4) =6a(5) =3a(6) =29a(7) =16a(8) =9a(9) =5a(10) =74a(11) =41a(12) =24a(13) =14a(14) =7a(15) =186a(16) =104a(17) =61a(18) =36a(19) =19a(20) =8a(21) =466a(22) =261a(23) =154a(24) =91a(25) =49a(26) =21a(27) =10a(28) =1166a(29) =654