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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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 4 of A250561 LINKS R. H. Hardin, Table of n, a(n) for n = 1..75 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 Adjacent sequences: A250560 A250561 A250562 * A250564 A250565 A250566 KEYWORD nonn AUTHOR R. H. Hardin, Nov 25 2014 STATUS approved

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Last modified December 2 23:17 EST 2023. Contains 367526 sequences. (Running on oeis4.)