A332953 - cp's OEIS frontend

A332953 The number of regions formed inside an isosceles triangle by straight line segments mutually connecting all vertices and all points that divide the two equal length sides into n equal parts; the base of the triangle contains no points other than its vertices.

n	a(n)
1	1
2	5
3	18
4	52
5	125
6	257
7	486
8	832
9	1333
10	2027
11	3048
12	4304
13	6057
14	8167
15	10749
16	13929
17	18058
18	22664
19	28533
20	34981
21	42519
22	51425
23	62118
24	73473
25	86768
26	101902
27	118695
28	137138
29	159147
30	181752
31	208813
32	237209
33	268614
34	303718
35	340882
36	380811
37	427540
38	477134
39	530047

[1, 5, 18, 52, 125, 257, 486, 832, 1333, 2027, 3048, 4304, 6057, 8167, 10749, 13929, 18058, 22664, 28533, 34981, 42519, 51425, 62118, 73473, 86768, 101902, 118695, 137138, 159147, 181752, 208813, 237209, 268614, 303718, 340882, 380811, 427540, 477134, 530047]

cp's OEIS Frontend

A332953 The number of regions formed inside an isosceles triangle by straight line segments mutually connecting all vertices and all points that divide the two equal length sides into n equal parts; the base of the triangle contains no points other than its vertices.

Table of values

List of values