Number of arrangements of 5 nonzero numbers x(i) in -n..n 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.

A190074

Number of arrangements of 5 nonzero numbers x(i) in -n..n 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) =12a(1) =144a(2) =922a(3) =3481a(4) =9904a(5) =23400a(6) =48491a(7) =92478a(8) =162599a(9) =270267a(10) =430274a(11) =655974a(12) =965098a(13) =1390174a(14) =1947527a(15) =2667906a(16) =3590889a(17) =4753865a(18) =6198717a(19) =7979654a(20) =10128692a(21) =12732119a(22) =15867500a(23) =19571053a(24) =23904927a(25) =29021539a(26) =34967650a(27) =41839570a(28) =49768153

External references