Triangle read by rows: T(n,k) is the number of unsensed 2-connected (nonseparable) planar maps with n edges and k vertices, n >= 2, 2 <= k <= n.
A379432
Triangle read by rows: T(n,k) is the number of unsensed 2-connected (nonseparable) planar maps with n edges and k vertices, n >= 2, 2 <= k <= n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =2a(8) =2a(9) =1a(10) =1a(11) =3a(12) =7a(13) =3a(14) =1a(15) =1a(16) =4a(17) =13a(18) =13a(19) =4a(20) =1a(21) =1a(22) =5a(23) =29a(24) =44a(25) =29a(26) =5a(27) =1a(28) =1a(29) =7
External references
- oeis: A379432