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

A200170

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

Terms

    a(0) =2a(1) =2276a(2) =57992a(3) =631638a(4) =3687480a(5) =15586972a(6) =50917674a(7) =141509152a(8) =344941886a(9) =762917274a(10) =1552478008a(11) =2969607490a(12) =5365606152a(13) =9271467482a(14) =15395275250

External references