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A270513 Number of 5X5X5 triangular 0..n arrays with some element plus some adjacent element totalling n+1 exactly once. 1
1149, 369072, 34889103, 1489277664, 32485734273, 448630205184, 4293998004723, 30804535353600, 177863468258565, 847631761246800, 3513899168535639, 12731640696610272, 41920406552431113, 125031636388348704 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A270509.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=1

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

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

....0.0.0......1.0.0......1.0.0......0.0.0......0.0.0......1.0.0......0.0.0

...0.1.0.0....0.0.0.0....0.0.0.1....0.0.1.0....0.1.0.0....1.0.0.1....1.0.0.0

..0.1.0.1.0..1.0.0.1.1..0.0.0.1.0..1.0.0.0.0..0.0.1.0.1..0.0.0.0.0..0.0.0.1.1

CROSSREFS

Cf. A270509.

Sequence in context: A274297 A074255 A234684 * A233944 A329520 A054999

Adjacent sequences:  A270510 A270511 A270512 * A270514 A270515 A270516

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 18 2016

STATUS

approved

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Last modified May 20 12:16 EDT 2022. Contains 353871 sequences. (Running on oeis4.)