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A248990
Number of length 3+4 0..n arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two
1
2, 53, 204, 585, 2042, 6065, 12644, 24583, 40878, 72399, 115668, 180421, 260514, 371185, 521910, 723925, 962888, 1263913, 1604166, 2067027, 2592298, 3230455, 3942088, 4781303, 5766434, 6934955, 8208132, 9682923, 11277354, 13209205
OFFSET
1,1
COMMENTS
Row 3 of A248987
LINKS
EXAMPLE
Some solutions for n=6
..3....1....6....5....6....0....2....3....2....2....2....6....5....5....5....0
..5....0....5....3....0....6....0....6....6....1....3....3....6....1....4....6
..0....2....3....2....3....6....2....0....0....5....2....6....3....0....2....4
..1....4....5....4....2....3....6....4....0....6....4....3....1....3....4....0
..6....3....1....6....4....0....5....2....2....6....4....2....5....1....5....5
..3....1....1....5....6....5....2....3....2....2....2....6....0....5....0....0
..5....5....5....3....5....1....5....1....6....1....3....3....1....6....4....1
CROSSREFS
Sequence in context: A364080 A248988 A248989 * A248991 A248992 A248993
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 18 2014
STATUS
approved