Number of no-leaf subgraphs of the 3 X n grid.
A301976
Number of no-leaf subgraphs of the 3 X n grid.
Terms
- a(0) =1a(1) =5a(2) =43a(3) =463a(4) =5193a(5) =58653a(6) =663203a(7) =7500343a(8) =84825873a(9) =959351093a(10) =10849935003a(11) =122709094303
External references
- oeis: A301976