Array described in A062704 read by diagonals in direction of creation.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =3a(5) =5a(6) =1a(7) =6a(8) =10a(9) =13a(10) =1a(11) =14a(12) =25a(13) =34a(14) =40a(15) =1a(16) =41a(17) =76a(18) =107a(19) =131a(20) =145a(21) =1a(22) =146a(23) =278a(24) =399a(25) =500a(26) =575a(27) =616a(28) =1a(29) =617