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 A187992 Number of nondecreasing arrangements of 8 numbers x(i) in -(n+6)..(n+6) with the sum of sign(x(i))*2^|x(i)| zero 1
 1452, 2199, 3158, 4357, 5825, 7592, 9689, 12148, 15002, 18285, 22032, 26279, 31063, 36422, 42395, 49022, 56344, 64403, 73242, 82905, 93437, 104884, 117293, 130712, 145190, 160777, 177524, 195483, 214707, 235250, 257167, 280514, 305348, 331727, 359710, 389357, 420729, 453888, 488897, 525820 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 8 of A187988 LINKS Table of n, a(n) for n=1..40. EXAMPLE Some solutions for n=3 .-9...-8...-8...-6...-8...-8...-7...-7...-8...-9...-6...-6...-6...-8...-9...-6 .-2...-2...-8...-4...-7...-5...-4...-7...-7...-7...-5...-2...-6...-8...-9...-6 .-2...-1...-5...-4...-6...-4...-3...-3...-6...-7...-1....0...-6...-3...-4...-6 .-1....1...-3...-1...-6...-1...-3...-3...-6...-7....0....0...-6...-3....4...-1 ..1....1...-3...-1...-5....1....5...-3...-3....7....0....1...-5...-1....8...-1 ..3....1....4....2....4....4....5....3...-3....7....5....4...-5....1....8....2 ..8....7....5....5....4....5....5....4....4....7....5....4....6....4....8....6 ..8....7....9....6....9....8....6....8....9....9....5....5....8....9....8....7 CROSSREFS Sequence in context: A325883 A237445 A122421 * A151722 A250148 A068280 Adjacent sequences: A187989 A187990 A187991 * A187993 A187994 A187995 KEYWORD nonn AUTHOR R. H. Hardin Mar 18 2011 EXTENSIONS More terms from R. J. Mathar, May 11 2023 STATUS approved

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Last modified August 11 17:02 EDT 2024. Contains 375073 sequences. (Running on oeis4.)