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A195803 Number of triangular nXnXn 0..6 arrays with all rows and diagonals having the same length having the same sum, with corners zero 0
1, 1, 7, 343, 12469, 5828215 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 6 of A195805

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=5

......0..........0..........0..........0..........0..........0..........0

.....3.6........4.1........2.5........1.6........0.5........0.6........1.2

....1.4.0......3.5.1......5.0.3......1.4.0......1.1.1......2.2.2......0.2.0

...6.2.3.4....0.4.6.5....3.2.4.2....6.2.3.2....5.1.1.0....6.2.2.0....2.2.2.1

..0.3.2.5.0..0.5.2.0.0..0.4.1.5.0..0.1.2.5.0..0.0.1.5.0..0.0.2.6.0..0.1.0.2.0

CROSSREFS

Sequence in context: A161582 A200967 A068150 * A263220 A145252 A154024

Adjacent sequences:  A195800 A195801 A195802 * A195804 A195805 A195806

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 23 2011

STATUS

approved

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Last modified October 28 13:26 EDT 2021. Contains 348329 sequences. (Running on oeis4.)