Wythoff difference array, D={d(i,j)}, by antidiagonals.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =4a(6) =13a(7) =18a(8) =10a(9) =6a(10) =34a(11) =47a(12) =26a(13) =15a(14) =8a(15) =89a(16) =123a(17) =68a(18) =39a(19) =20a(20) =9a(21) =233a(22) =322a(23) =178a(24) =102a(25) =52a(26) =23a(27) =11a(28) =610a(29) =843