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A250563
Number of length 4+2 0..n arrays with the sum of second differences multiplied by some arrangement of +-1 equal to zero
1
32, 297, 1516, 5105, 13732, 31173, 63400, 117749, 204712, 336293, 529072, 800689, 1175088, 1677185, 2338728, 3193293, 4283108, 5649837, 7347520, 9429021, 11959288, 15003857, 18642524, 22951429, 28026324, 33959013, 40858932, 48834549
OFFSET
1,1
COMMENTS
Row 4 of A250561
LINKS
EXAMPLE
Some solutions for n=6
..2....2....5....6....2....4....2....1....2....5....4....3....6....2....0....5
..2....1....4....5....5....6....0....4....2....2....2....6....6....6....2....6
..5....5....4....3....1....2....0....6....5....0....6....2....4....1....0....6
..4....0....2....3....1....2....1....5....1....0....5....0....4....5....0....2
..6....4....3....1....0....3....1....0....1....4....0....2....3....5....0....1
..4....3....6....2....1....1....1....3....1....1....0....5....1....1....2....2
CROSSREFS
Sequence in context: A316287 A306051 A317228 * A060158 A074469 A159654
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2014
STATUS
approved