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A200201 Number of -5..5 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences 1

%I #5 Mar 31 2012 12:36:38

%S 798,7450,70400,667620,6428538,62141592,604864626,5910438976,

%T 57975632400,570460963084,5628281238070,55659731103340,

%U 551565557625452,5475686423922678,54447753338275452,542185148049168142

%N Number of -5..5 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences

%C Column 5 of A200204

%H R. H. Hardin, <a href="/A200201/b200201.txt">Table of n, a(n) for n = 1..59</a>

%e Some solutions for n=3

%e .-4...-4...-3....4...-5...-3....3...-4...-3....3...-4...-4....3...-5....1...-2

%e ..1...-4....2...-5...-3...-1....2...-2...-2...-3...-1...-1....1...-5....2....2

%e .-3....4....4...-1....5....3...-4...-3....3...-3....3....3....3....4...-2...-2

%e ..2...-3...-2...-1....2...-3...-2....4....0...-1...-5...-2...-5....1....4....3

%e ..5....3...-3...-2....2...-1...-3....4....0....5....3....2...-1....3...-5....0

%e .-1....4....2....5...-1....5....4....1....2...-1....4....2...-1....2....0...-1

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 14 2011

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Last modified July 17 05:50 EDT 2024. Contains 374360 sequences. (Running on oeis4.)