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A270854 Number of 5 X 5 X 5 triangular 0..n arrays with some element plus some adjacent element totaling n+1, n or n-1 exactly once. 1
0, 0, 2298, 307494, 15754872, 469037376, 8746813158, 121991495904, 1213829981232, 9734824653450, 61574400558324, 331178241244350, 1508910046819356, 6093153192888900, 21845378487998154, 71477509051004274 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Row 5 of A270850.
LINKS
EXAMPLE
Some solutions for n=3
......2..........2..........0..........3..........1..........3..........0
.....2.3........2.3........1.1........2.3........0.0........3.2........0.0
....3.3.2......3.3.3......0.0.0......3.2.3......0.0.0......3.2.3......0.0.0
...3.3.3.3....3.2.3.3....0.0.0.1....3.3.3.3....0.0.0.1....2.3.3.3....0.1.0.1
..3.2.3.3.3..3.3.3.3.3..1.0.0.0.0..3.2.3.3.2..0.1.0.0.1..3.3.2.3.3..0.1.0.0.0
CROSSREFS
Cf. A270850.
Sequence in context: A123911 A126173 A083572 * A260292 A359321 A339349
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 24 2016
STATUS
approved

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Last modified February 22 16:01 EST 2024. Contains 370256 sequences. (Running on oeis4.)