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 A200427 Number of -5..5 arrays x(0..n+2) of n+3 elements with zero sum and no two or three adjacent elements summing to zero 1
 520, 4750, 36952, 293464, 2591502, 23380862, 210222830, 1882624856, 16911040968, 152565274262, 1381204433968, 12534862082614, 113983746333928, 1038347313892636, 9474508237939826, 86579678278534962, 792234931151418444 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 5 of A200430 LINKS R. H. Hardin, Table of n, a(n) for n = 1..130 EXAMPLE Some solutions for n=3 .-1....0...-1...-1....0...-4....2....2....2....4....5....4...-2...-3...-1...-1 ..3....5....4...-2....1...-4...-3...-3....0....2....0...-3...-5....1...-3....3 ..2....3....4....1....4....2...-3...-1....2....0....2...-3...-3....3....5....5 ..2...-2....0....3...-3....5....0...-1...-3...-4...-4....5....2....0....2....0 .-3...-2...-3...-1...-2....5....5....4....0...-3...-3....1....5....2...-1...-3 .-3...-4...-4....0....0...-4...-1...-1...-1....1....0...-4....3...-3...-2...-4 CROSSREFS Sequence in context: A147856 A094903 A250693 * A250678 A178269 A351324 Adjacent sequences: A200424 A200425 A200426 * A200428 A200429 A200430 KEYWORD nonn AUTHOR R. H. Hardin Nov 17 2011 STATUS approved

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Last modified March 26 04:58 EDT 2023. Contains 361529 sequences. (Running on oeis4.)