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 A226340 T(n,k)=Number of nondecreasing -k..k vectors of length n whose dot product with some other -k..k vector equals n 13
 2, 2, 3, 2, 14, 4, 2, 22, 23, 5, 2, 34, 74, 67, 6, 2, 50, 130, 193, 100, 7, 2, 66, 242, 480, 419, 202, 8, 2, 90, 362, 972, 1139, 921, 281, 9, 2, 114, 578, 1736, 2857, 2973, 1640, 479, 10, 2, 138, 786, 2962, 5621, 7951, 6068, 2951, 636, 11, 2, 170, 1138, 4733, 11041, 18509 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS R. H. Hardin, Table of n, a(n) for n = 1..96 EXAMPLE Table starts ..2...2....2.....2.....2......2......2.....2.....2.....2.....2....2...2.2 ..3..14...22....34....50.....66.....90...114...138...170...210..234.282 ..4..23...74...130...242....362....578...786..1138..1442..1962.2418 ..5..67..193...480...972...1736...2962..4733..7063.10319.14629 ..6.100..419..1139..2857...5621..11041.18937.31901.49666 ..7.202..921..2973..7951..18509..38678.74349 ..8.281.1640..6068.19046..48341.114235 ..9.479.2951.12823.43667.125429 .10.636.4945.23590.91607 .11.971.7927.43620 Some solutions for n=3 k=4 .-2...-4...-2...-2...-2...-3...-2...-1....3...-2...-4...-4...-2...-3...-1...-4 ..1...-4...-1....1....1...-3....0....2....4...-2....1...-1...-1...-1....2....3 ..2....3....2....1....4...-3....1....3....4....1....2....2...-1....2....2....3 CROSSREFS Sequence in context: A285247 A016007 A226410 * A334663 A016008 A334514 Adjacent sequences: A226337 A226338 A226339 * A226341 A226342 A226343 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jun 04 2013 STATUS approved

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Last modified June 23 15:10 EDT 2024. Contains 373651 sequences. (Running on oeis4.)