Number of unrooted 3-connected triangulations of a pentagon with n interior nodes.
A342054
Number of unrooted 3-connected triangulations of a pentagon with n interior nodes.
Terms
- a(0) =1a(1) =2a(2) =12a(3) =73a(4) =503a(5) =3661a(6) =27715a(7) =214664a(8) =1691049a(9) =13494718a(10) =108864742a(11) =886520081a(12) =7279644889a(13) =60225617740a(14) =501640531350
External references
- oeis: A342054