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A271682
Number of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no more than 6-1 elements moved to themselves.
0
1, 6, 60, 2113, 172410, 36413940, 18170233119, 21841947058888, 61988254011431753, 418314271755569289008
OFFSET
1,2
COMMENTS
Column 6 of A271684.
EXAMPLE
Some solutions for n=4
.....5........5........6........0........0........5........5........6
....2.0......6.1......2.6......0.0......5.3......5.1......2.5......6.1
...5.0.6....6.4.1....4.1.6....5.4.3....6.0.1....6.4.1....0.2.0....5.1.5
..4.1.0.1..2.3.4.3..0.1.3.3..4.1.4.3..0.4.4.1..0.4.1.0..4.3.0.0..2.0.4.1
Element moves: 0=itself 1=nw 2=ne 3=w 4=e 5=sw 6=se, reciprocals total 7
CROSSREFS
Cf. A271684.
Sequence in context: A271681 A010574 A363789 * A082681 A061431 A261523
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 12 2016
STATUS
approved