Square array A(n,k) by antidiagonals. A(n,k) is the number of length 2n k-ary words (n,k>=0), either empty or beginning with the first character of the alphabet, that can be built by repeatedly inserting doublets into the initially empty word.
A183134
Square array A(n,k) by antidiagonals. A(n,k) is the number of length 2n k-ary words (n,k>=0), either empty or beginning with the first character of the alphabet, that can be built by repeatedly inserting doublets into the initially empty word.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =0a(6) =1a(7) =1a(8) =1a(9) =0a(10) =1a(11) =1a(12) =3a(13) =1a(14) =0a(15) =1a(16) =1a(17) =5a(18) =10a(19) =1a(20) =0a(21) =1a(22) =1a(23) =7a(24) =29a(25) =35a(26) =1a(27) =0a(28) =1a(29) =1
External references
- oeis: A183134