A166771 Number of n X 6 1..2 arrays containing at least one of each value, and all equal values connected.

10, 132, 1618, 18584, 206392, 2247486, 24057962, 253872596, 2646985492, 27314646774, 279336752042, 2834216781868, 28557453089020, 285979131364722, 2848221941695166, 28228788045963448, 278553921030487780, 2737889369953658314, 26815069186724304206, 261785062066218670340

Offset: 1

Author

R. H. Hardin, Oct 21 2009

Keywords

• nonn

Examples

			Some solutions for n=3
...1.1.1.1.1.2...2.2.2.2.2.1...2.2.2.2.2.2...2.2.2.2.1.1...2.2.2.2.2.2
...1.1.2.1.1.2...2.2.2.1.2.1...2.1.1.2.2.2...1.1.1.2.2.1...2.1.1.2.1.2
...2.2.2.2.2.2...2.2.2.1.1.1...1.1.1.1.1.1...1.1.1.1.1.1...2.2.1.1.1.2
------
...2.2.2.2.1.1...1.1.1.1.1.1...2.2.1.1.2.2...2.2.1.1.1.2...1.1.1.1.1.1
...2.2.2.2.1.1...1.1.1.1.1.1...2.2.2.2.2.2...2.1.1.1.1.2...1.1.1.2.2.2
...2.2.1.1.1.1...1.2.2.2.1.1...2.2.2.2.2.2...2.2.2.2.2.2...1.1.1.1.1.1
		

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..200

Crossrefs

Twice row 6 of A378932.

Extensions

a(7) onwards from Andrew Howroyd, Dec 12 2024