Number of arrangements of n+1 nonzero numbers x(i) in -6..6 with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero.

A190068

Number of arrangements of n+1 nonzero numbers x(i) in -6..6 with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero.

Terms

    a(0) =30a(1) =233a(2) =2276a(3) =23400a(4) =249119a(5) =2783714a(6) =31391655a(7) =353856100a(8) =4017545773a(9) =45918810745a(10) =526830982562

External references