A358407 - cp's OEIS frontend

A358407 Number of regions formed in a square by straight line segments when connecting the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on each of the two adjacent edges of the square.

n	a(n)
1	1
2	5
3	37
4	173
5	553
6	1365
7	2909
8	5513
9	9577
10	15485
11	24157
12	35021
13	51201
14	71013
15	95621
16	126277
17	167213
18	211737
19	272025
20	335681
21	413677
22	505445
23	618557
24	729485
25	878017
26	1034697
27	1215185
28	1409273
29	1654785
30	1875265
31	2192281
32	2486797
33	2836317
34	3216833
35	3633709
36	4034313
37	4599789
38	5124841

[1, 5, 37, 173, 553, 1365, 2909, 5513, 9577, 15485, 24157, 35021, 51201, 71013, 95621, 126277, 167213, 211737, 272025, 335681, 413677, 505445, 618557, 729485, 878017, 1034697, 1215185, 1409273, 1654785, 1875265, 2192281, 2486797, 2836317, 3216833, 3633709, 4034313, 4599789, 5124841]

cp's OEIS Frontend

A358407 Number of regions formed in a square by straight line segments when connecting the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on each of the two adjacent edges of the square.

Table of values

List of values