A190076 - cp's OEIS frontend

A190076 Number of arrangements of 7 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	40
2	1896
3	28656
4	191456
5	834717
6	2783714
7	7737762
8	18951546
9	41786130
10	84902980
11	162378720
12	292892946
13	503182507
14	835582280
15	1339061119
16	2077237619
17	3144963614
18	4653920446
19	6746522401
20	9597835033
21	13398597773
22	18439060711

[40, 1896, 28656, 191456, 834717, 2783714, 7737762, 18951546, 41786130, 84902980, 162378720, 292892946, 503182507, 835582280, 1339061119, 2077237619, 3144963614, 4653920446, 6746522401, 9597835033, 13398597773, 18439060711]

cp's OEIS Frontend

A190076 Number of arrangements of 7 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