A068249 1/6 the number of colorings of a 6 X 6 staggered hexagonal array with n colors.

1, 123933504, 607054532700510, 42295002762341131520, 221621606435023540827375, 227499908955471802467974016, 76749558468512064584917217484, 11559255724071428199019433809920, 945121792213234612017996840421965, 47886238153764555711259823337784000

Offset: 3

Author

R. H. Hardin, Feb 24 2002

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 3..1000
• Alois P. Heinz, Formula for A068249

Crossrefs

Cf. A068239-A068305, A000332, A002417, A027441, A212194, A212195.

Extensions

Extended beyond a(7) by Alois P. Heinz, May 03 2012