A190078 - cp's OEIS frontend

A190078 Number of arrangements of 9 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.

n	a(n)
1	140
2	27328
3	910716
4	10802667
5	73725405
6	353856100
7	1333341624
8	4232955454
9	11720735320
10	29213945353
11	67119317038
12	143366487211
13	287901954546
14	552087286271
15	1012169804786
16	1781377206624
17	3036183971866
18	5024176668242

[140, 27328, 910716, 10802667, 73725405, 353856100, 1333341624, 4232955454, 11720735320, 29213945353, 67119317038, 143366487211, 287901954546, 552087286271, 1012169804786, 1781377206624, 3036183971866, 5024176668242]

cp's OEIS Frontend

A190078 Number of arrangements of 9 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.

Table of values

List of values