A271741 Number of ways to dissect a hexagon with side length n exactly into two identical parts in a triangular lattice.

1, 8, 731, 982648, 16305532683, 3722056510716702, 11931439930135002524767

Offset

1,2

Links

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

G. P. Jelliss, Dissected Hexagons, The Games and Puzzles Journal, Issue 22, January-April 2002.

Crossrefs

Cf. A268606, A271857, A113900.

Sequence in context: A144230 A309377 A110039 * A254857 A058921 A240283

Adjacent sequences: A271738 A271739 A271740 * A271742 A271743 A271744

Keyword

nonn,more

Author

Andrew Howroyd, Apr 15 2016

Status

approved