Number of n-node triangulations of the sphere with minimal degree 5.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =1a(9) =0a(10) =1a(11) =1a(12) =3a(13) =4a(14) =12a(15) =23a(16) =73a(17) =192a(18) =651a(19) =2070a(20) =7290a(21) =25381a(22) =91441a(23) =329824a(24) =1204737a(25) =4412031a(26) =16248772a(27) =59995535a(28) =222231424a(29) =825028656