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A200550 Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences 1

%I

%S 80,836,7778,75792,737460,7286542,72366820,723237026,7258296910,

%T 73127883596,739101010202,7490787201124,76099633989974,

%U 774719436417776,7901415122713726,80719023935569240,825814487838111514

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

%C Column 5 of A200553

%H R. H. Hardin, <a href="/A200550/b200550.txt">Table of n, a(n) for n = 1..145</a>

%e Some solutions for n=3

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 19 2011

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Last modified June 28 05:40 EDT 2022. Contains 354903 sequences. (Running on oeis4.)