A068243 1/2 the number of colorings of a 7 X 7 square array with n colors.

1, 20934997854, 19278946338342653286, 112656664890078627543093640, 20043672552286729048799884311015, 361011452813936865714801000277216206, 1332266848133993021484807934080054103804, 1550797305138088176220498521209275420942656

Offset: 2

Author

R. H. Hardin, Feb 24 2002

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 2..1000
• Alois P. Heinz, Formula for a(n)

Crossrefs

Cf. A068239-A068305, A000332, A002417, A027441, A182368, A182406.

Extensions

More terms from Alois P. Heinz, Apr 27 2012