A076437 Square board sizes for which the lights out problem has a unique solution (counting solutions differing only by rotation and reflection as equivalent).

1, 2, 3, 5, 6, 7, 8, 10, 12, 13, 15, 17, 18, 20, 21, 22, 25, 26, 27, 28, 31, 36, 37, 38, 40, 41, 42, 43, 45, 46, 48, 51, 52, 53, 55, 56, 57, 58, 60, 63, 66, 68, 70, 72, 73, 75, 76, 77, 78, 80

Offset

1,2

Links

Table of n, a(n) for n=1..50.

M. Anderson and T. Feil, Turning Lights Out with Linear Algebra, Mathematics Magazine, 71 (1998), 300-303

Eric Weisstein's World of Mathematics, Lights Out Puzzle

Crossrefs

Cf. A075463, A076436.

Sequence in context: A145353 A013936 A229992 * A028790 A028748 A028783

Adjacent sequences: A076434 A076435 A076436 * A076438 A076439 A076440

Keyword

nonn,more

Author

Eric W. Weisstein, Oct 11 2002

Extensions

More terms from Zhao Hui Du, Mar 29 2014

Status

approved