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A183277 Number of nXnXn triangular binary arrays with no three ones adjacent in a row in any of the three triangular directions 1
2, 8, 45, 442, 7844, 227960, 11338707, 967001704, 139878150889, 34482378877062, 14485392134699640, 10360611912959874865, 12622082042125925192310, 26191137001819846311849551, 92562230432526123151485183549 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..16

EXAMPLE

Some solutions for 4X4X4 with no three ones in a row

.....0........1........0........0........1........0........1........0

....1.1......0.0......0.1......0.0......0.1......0.0......0.1......1.0

...0.0.0....0.1.0....0.0.0....1.1.0....0.1.0....0.1.1....1.1.0....0.1.0

..1.0.0.0..1.1.0.1..1.1.0.0..0.1.0.0..0.0.1.0..1.1.0.1..1.0.0.0..0.1.0.1

CROSSREFS

Sequence in context: A144164 A003091 A119501 * A269006 A266507 A202081

Adjacent sequences:  A183274 A183275 A183276 * A183278 A183279 A183280

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 03 2011

STATUS

approved

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Last modified June 24 00:06 EDT 2021. Contains 345403 sequences. (Running on oeis4.)