Number of arrangements of n+1 nonzero numbers x(i) in -3..3 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.

A190065

Number of arrangements of n+1 nonzero numbers x(i) in -3..3 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) =6a(1) =36a(2) =166a(3) =922a(4) =5136a(5) =28656a(6) =162028a(7) =910716a(8) =5162308a(9) =29554964a(10) =169886511a(11) =978214225a(12) =5650347932a(13) =32745824773a(14) =190185910978

External references