Array read by antidiagonals: T(n,k) is the number of rooted k-regular combinatorial maps with n vertices, n >= 0, k >= 1.
A380622
Array read by antidiagonals: T(n,k) is the number of rooted k-regular combinatorial maps with n vertices, n >= 0, k >= 1.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =1a(6) =1a(7) =0a(8) =1a(9) =0a(10) =1a(11) =3a(12) =5a(13) =1a(14) =0a(15) =1a(16) =0a(17) =24a(18) =0a(19) =1a(20) =0a(21) =1a(22) =15a(23) =189a(24) =297a(25) =60a(26) =1a(27) =0a(28) =1a(29) =0
External references
- oeis: A380622