Number of Hamiltonian paths in a 4 X (2n+1) grid starting at the lower left corner and finishing in the upper right corner.
A014523
Number of Hamiltonian paths in a 4 X (2n+1) grid starting at the lower left corner and finishing in the upper right corner.
Terms
- a(0) =1a(1) =4a(2) =20a(3) =111a(4) =624a(5) =3505a(6) =19676a(7) =110444a(8) =619935a(9) =3479776a(10) =19532449a(11) =109638260a(12) =615414276a(13) =3454402959a(14) =19390027600a(15) =108838828241a(16) =610926955724
External references
- oeis: A014523