A190073 - cp's OEIS frontend

A190073 Number of arrangements of 4 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	0
2	40
3	166
4	483
5	1126
6	2276
7	4150
8	6946
9	10909
10	16353
11	23728
12	33290
13	45591
14	61100
15	80161
16	103121
17	130833
18	163649
19	202441
20	247746
21	300269
22	360694
23	430361
24	508989
25	598090
26	698534
27	811133
28	936287
29	1075989
30	1230312
31	1401309
32	1589246
33	1795222

[0, 40, 166, 483, 1126, 2276, 4150, 6946, 10909, 16353, 23728, 33290, 45591, 61100, 80161, 103121, 130833, 163649, 202441, 247746, 300269, 360694, 430361, 508989, 598090, 698534, 811133, 936287, 1075989, 1230312, 1401309, 1589246, 1795222]

cp's OEIS Frontend

A190073 Number of arrangements of 4 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