A114043 - cp's OEIS frontend

A114043 Take an n X n square grid of points in the plane; a(n) = number of ways to divide the points into two sets using a straight line.

n	a(n)
1	1
2	7
3	29
4	87
5	201
6	419
7	749
8	1283
9	2041
10	3107
11	4493
12	6395
13	8745
14	11823
15	15557
16	20075
17	25457
18	32087
19	39725
20	48935
21	59457
22	71555
23	85253
24	101251
25	119041
26	139351
27	161933
28	187255
29	215137
30	246691
31	280917
32	319347
33	361329
34	407303

[1, 7, 29, 87, 201, 419, 749, 1283, 2041, 3107, 4493, 6395, 8745, 11823, 15557, 20075, 25457, 32087, 39725, 48935, 59457, 71555, 85253, 101251, 119041, 139351, 161933, 187255, 215137, 246691, 280917, 319347, 361329, 407303]

cp's OEIS Frontend

A114043 Take an n X n square grid of points in the plane; a(n) = number of ways to divide the points into two sets using a straight line.

Table of values

List of values