A359975 - cp's OEIS frontend

A359975 Number of regions formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions on one edge equal the Farey series of order n while on the other they divide its length into n equal segments.

n	a(n)
1	1
2	5
3	30
4	110
5	479
6	993
7	3102
8	6135
9	12748
10	20680
11	43907
12	62753
13	118746
14	168892
15	246513
16	348176
17	571980
18	725956
19	1129035
20	1426393
21	1887096
22	2387945
23	3454566
24	4123548
25	5543837

[1, 5, 30, 110, 479, 993, 3102, 6135, 12748, 20680, 43907, 62753, 118746, 168892, 246513, 348176, 571980, 725956, 1129035, 1426393, 1887096, 2387945, 3454566, 4123548, 5543837]

cp's OEIS Frontend

A359975 Number of regions formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions on one edge equal the Farey series of order n while on the other they divide its length into n equal segments.

Table of values

List of values