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 A200553 T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences 14
 4, 14, 14, 30, 76, 26, 52, 200, 280, 72, 80, 446, 1184, 1240, 142, 114, 836, 3396, 7254, 4978, 362, 154, 1368, 7778, 26850, 43698, 21626, 778, 200, 2134, 15476, 75792, 211374, 266812, 91058, 1938, 252, 3140, 27806, 178834, 737460, 1689732, 1639804 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .....4......14........30.........52..........80..........114...........154 ....14......76.......200........446.........836.........1368..........2134 ....26.....280......1184.......3396........7778........15476.........27806 ....72....1240......7254......26850.......75792.......178834........372150 ...142....4978.....43698.....211374......737460......2076774.......5012084 ...362...21626....266812....1689732.....7286542.....24378976......68263780 ...778...91058...1639804...13587804....72366820....288237528.....936121220 ..1938..393660..10152636..109957140...723237026...3427837106...12911643944 ..4366.1686980..63132188..893510530..7258296910..40950125796..178893425570 .10628.7309386.394016210.7288331916.73127883596.491063998130.2488110363432 LINKS R. H. Hardin, Table of n, a(n) for n = 1..715 EXAMPLE Some solutions for n=4 k=3 ..1....1...-1....1...-1...-3...-1...-1....2....3....3...-3...-2....1....0...-3 ..1...-1...-3...-2....1...-3...-3....1...-3....2...-2....2....1...-1....0....3 .-1...-2....3....3....0....0....2....2....1...-3....0....2....1....0....2....2 ..0....2...-3...-1....0....0....1....2...-2...-3...-3...-2....2...-2...-3...-2 .-3...-3....1...-3...-2....3....2...-3....3....0...-1...-1...-3....1....1....0 ..2....3....3....2....2....3...-1...-1...-1....1....3....2....1....1....0....0 CROSSREFS Row 1 is A049451 Sequence in context: A170847 A168420 A189814 * A229392 A229320 A127302 Adjacent sequences: A200550 A200551 A200552 * A200554 A200555 A200556 KEYWORD nonn,tabl AUTHOR R. H. Hardin Nov 19 2011 STATUS approved

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Last modified February 21 22:13 EST 2024. Contains 370237 sequences. (Running on oeis4.)