A095707 Total number of distinct winning paths across an n X n Hex board.

1, 3, 11, 54, 365, 3848, 68914

Offset

1,2

Comments

a(n) ~ (n!)^2 / 2^n.

Links

Table of n, a(n) for n=1..7.

Example

a(3) = 11; 8 of length 3 (cf. A001792) plus 2 of length 4 (cf. A096367) plus 1 of length 5 [a1,a2,b2,c2,c3].

Crossrefs

Cf. A001792, A096367.

Sequence in context: A054700 A009280 A267832 * A259105 A242952 A266027

Adjacent sequences: A095704 A095705 A095706 * A095708 A095709 A095710

Keyword

nonn,more

Author

David Bevan, Jul 07 2004

Status

approved