A193155 Number of nXnXn triangular 0..1 arrays with each element equal to the sum mod 2 of two neighbors

0, 4, 8, 126, 3269, 169942, 17345573, 3495586809, 1389897952334, 1090163075958998, 1686816727834550231, 5148938004752209696533, 31005486113751088602024098, 368324363978199003012362844935

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

Some solutions for 4X4X4
.....0........1........0........0........0........1........1........1
....1.1......1.0......1.1......0.0......1.1......1.0......1.0......0.1
...0.1.0....1.0.0....0.0.0....1.1.1....1.1.0....0.1.0....0.1.1....1.0.0
..1.1.1.1..1.0.1.1..1.1.1.1..0.1.0.1..0.1.1.1..0.0.1.1..0.0.0.1..0.1.1.1

Crossrefs

Sequence in context: A012940 A182967 A013049 * A060239 A127943 A012498

Adjacent sequences: A193152 A193153 A193154 * A193156 A193157 A193158

Keyword

nonn

Author

R. H. Hardin Jul 16 2011

Status

approved