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 A250282 Number of length 7+1 0..n arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero 0
 128, 2763, 20252, 107387, 381812, 1154141, 2908232, 6704631, 13816144, 26741121, 48197940, 83583525, 137527528, 219303553, 336659016, 505804957, 737614588, 1056435849, 1478402044, 2041032531, 2764805264 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A250277 LINKS Table of n, a(n) for n=1..21. EXAMPLE Some solutions for n=4 ..0....4....2....2....4....0....3....0....0....2....2....0....1....3....4....1 ..1....2....2....0....0....1....1....3....1....1....4....1....1....1....1....1 ..4....2....1....1....3....3....1....2....4....4....0....4....4....3....3....3 ..2....4....4....4....2....0....3....0....4....2....3....0....4....0....1....2 ..1....1....2....2....1....4....3....4....3....2....2....2....1....4....0....1 ..2....0....1....2....4....1....4....4....1....0....0....2....4....3....0....1 ..4....0....0....3....0....1....1....1....4....2....1....3....4....0....1....2 ..4....0....2....4....0....0....1....0....2....0....2....0....1....1....0....1 CROSSREFS Sequence in context: A283548 A297687 A221662 * A019564 A224163 A224414 Adjacent sequences: A250279 A250280 A250281 * A250283 A250284 A250285 KEYWORD nonn AUTHOR R. H. Hardin, Nov 16 2014 STATUS approved

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Last modified June 24 03:36 EDT 2024. Contains 373661 sequences. (Running on oeis4.)