cp's OEIS Frontend

A200170 Number of -n..n arrays x(0..6) of 7 elements with nonzero sum and with zero through 6 differences all nonzero.

%I A200170 #6 Jul 22 2025 15:43:20
%S A200170 2,2276,57992,631638,3687480,15586972,50917674,141509152,344941886,
%T A200170 762917274,1552478008,2969607490,5365606152,9271467482,15395275250
%N A200170 Number of -n..n arrays x(0..6) of 7 elements with nonzero sum and with zero through 6 differences all nonzero.
%C A200170 Row 7 of A200165
%e A200170 Some solutions for n=5
%e A200170 ..2....1...-4...-4....1....2...-5....1...-5....2....2....1...-4...-4....2...-4
%e A200170 ..1...-5...-5....1...-5...-4....1...-5....1...-5...-5...-4...-5....1....1...-5
%e A200170 .-4....2....2...-5....2...-5...-4....1...-5....2...-4...-5...-4....2...-5...-4
%e A200170 .-2....1...-4....4....1...-2....4...-1...-2...-1...-2....4...-2...-4...-4....5
%e A200170 .-1...-5....2...-3....3...-1...-4....4....2...-5...-4...-3...-5....4....1...-5
%e A200170 ..5....3....1....4...-5....2....5...-4....4....5....3....1...-4...-2...-1...-4
%e A200170 ..1...-5....3...-5....2...-3....2...-1...-5...-2....5....4....5....4....1....2
%K A200170 nonn
%O A200170 1,1
%A A200170 _R. H. Hardin_ Nov 13 2011