A255262 Number of 2-colorings of a 5 X n rectangle such that no nontrivial subsquare has monochromatic corners.

1, 32, 634, 8352, 85138, 781712, 6965108, 63676276, 573884026, 5345916472, 49611640680, 461953566404, 4330354287396, 40272872295148, 374708736274324, 3480925090005388, 32298776524667360, 300205447716571716, 2790072113514722888, 25940651276104559604, 241231567695925299556

Offset

0,2

Links

Table of n, a(n) for n=0..20.

Crossrefs

Column k=5 of A255256.

Sequence in context: A283279 A004337 A292880 * A181240 A140802 A028204

Adjacent sequences: A255259 A255260 A255261 * A255263 A255264 A255265

Keyword

nonn

Author

Alois P. Heinz, Feb 19 2015

Status

approved