Number of -n..n arrays x(0..6) of 7 elements with zero sum and elements alternately strictly increasing and strictly decreasing.

A200061

Number of -n..n arrays x(0..6) of 7 elements with zero sum and elements alternately strictly increasing and strictly decreasing.

Terms

    a(0) =14a(1) =472a(2) =4224a(3) =20978a(4) =74338a(5) =211242a(6) =514168a(7) =1115572a(8) =2215290a(9) =4099888a(10) =7165376a(11) =11941380a(12) =19119208a(13) =29580842a(14) =44432366a(15) =65037696a(16) =93057524a(17) =130487666a(18) =179703518a(19) =243503094a(20) =325156994a(21) =428455996a(22) =557766736a(23) =718083722a(24) =915090720

External references