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%I #7 Sep 01 2013 22:33:30
%S 511,19171,242461,1688101,8003363,28791007,83538705,206640895,
%T 452873953,905925541,1685763043,2956504443,4937476981,7911258441,
%U 12241201127,18381927239,26892458313
%N Number of third differences of arrays of length 9 of numbers in 0..n.
%C Row 6 of A228260
%e Some solutions for n=4
%e .-9..-12..-11..-10...-9..-14...-9..-13..-11..-12..-10..-11..-11..-10...-9...-9
%e ..2....6....2....6....7....8....1....5....4...10....9...10....5....6....6....9
%e ..4....4....5...-1...-1...-2....8...-1...-1..-12..-10..-10....0....1...-8..-12
%e .-4..-10...-4...-1...-4...-2...-7....4....2...12...10....8...-5...-2....9...11
%e ..7....4...-2...-1....7....7...-1...-4....0...-3...-8...-3...11...-1...-6....0
%e .-7....4....7....1...-4...-9....8....2...-5...-5....0...-5..-15....1....3...-8
%K nonn
%O 1,1
%A _R. H. Hardin_ Aug 19 2013