Irregular triangle read by rows: T(n,k) is the number of sensed 3-connected planar maps with n >= 4 faces and k >= 4 vertices.
A239893
Irregular triangle read by rows: T(n,k) is the number of sensed 3-connected planar maps with n >= 4 faces and k >= 4 vertices.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =3a(7) =2a(8) =2a(9) =0a(10) =0a(11) =2a(12) =11a(13) =16a(14) =10a(15) =6a(16) =0a(17) =0a(18) =2a(19) =16a(20) =69a(21) =127a(22) =128a(23) =60a(24) =17a(25) =0a(26) =0a(27) =0a(28) =10a(29) =127
External references
- oeis: A239893