Table T(n,k) = n OR k read by antidiagonals.

Terms

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