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A200451 Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences 1
72, 678, 5720, 50852, 451708, 4062384, 36725772, 334032710, 3050654456, 27965763262, 257160791680, 2371128350480, 21913699015614, 202938626310668, 1882772669652668, 17495621074794634, 162811923678190584 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A200454
LINKS
EXAMPLE
Some solutions for n=3
..5....5...-5...-5....1....1...-4....2...-1....2...-4....4....0....1....0....2
.-4...-4....4....3...-3...-2...-1....3....1...-4....2...-5....3...-5...-5...-5
..4....1...-5....5...-1....1....3....2...-2....0....4....5...-3....3....2...-2
..0....2....1...-5....0....3....2...-5...-1....3....2...-4....1....1...-1....0
.-5...-4....5....2....3...-3....0...-2....3...-1...-4....0...-1....0....4....5
CROSSREFS
Sequence in context: A085718 A205329 A077120 * A097205 A253917 A008448
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 18 2011
STATUS
approved

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Last modified June 24 21:56 EDT 2024. Contains 373690 sequences. (Running on oeis4.)