Array read by antidiagonals with T(n,k) = min(n,k).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =2a(8) =2a(9) =1a(10) =1a(11) =2a(12) =3a(13) =2a(14) =1a(15) =1a(16) =2a(17) =3a(18) =3a(19) =2a(20) =1a(21) =1a(22) =2a(23) =3a(24) =4a(25) =3a(26) =2a(27) =1a(28) =1a(29) =2