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 A248468 Number of length 7+2 0..n arrays with no three consecutive terms having the sum of any two elements equal to twice the third 1
 110, 1152, 43940, 387488, 2582406, 11447368, 44452660, 139623544, 400150926, 1002628764, 2352502608, 5078891508, 10430306882, 20141675148, 37480145240, 66683720948, 115148012058, 192026426768, 312626222120, 495163608752 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 7 of A248461 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=3 ..0....2....2....1....3....1....0....0....2....1....0....3....2....1....1....3 ..0....2....3....3....1....0....0....3....3....3....3....1....2....3....0....1 ..1....3....3....3....0....3....3....3....0....3....1....1....0....0....1....0 ..1....0....0....0....0....2....1....1....2....2....3....3....2....3....1....3 ..3....2....0....1....3....0....0....3....3....2....3....1....0....3....3....2 ..0....3....3....1....2....2....0....1....0....1....2....3....3....0....0....3 ..1....3....0....0....0....0....2....0....0....2....2....1....3....1....3....0 ..0....2....1....3....3....2....0....0....2....1....0....3....2....1....0....1 ..0....3....1....3....0....0....3....3....0....2....3....3....2....3....0....1 CROSSREFS Sequence in context: A213087 A284244 A232781 * A231967 A232339 A358256 Adjacent sequences: A248465 A248466 A248467 * A248469 A248470 A248471 KEYWORD nonn AUTHOR R. H. Hardin, Oct 06 2014 STATUS approved

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Last modified February 8 23:03 EST 2023. Contains 360153 sequences. (Running on oeis4.)