A244096 - cp's OEIS frontend

A244096 Rounded down area ratio of a circle inscribed in a congruent triangle of a regular n-gon and a circle inscribed between a side of such an n-gon and a circumscribed unit circle.

n	a(n)
3	0
4	4
5	9
6	18
7	30
8	45
9	63
10	84
11	108
12	135
13	166
14	200
15	237
16	277
17	321
18	367
19	417
20	471
21	527
22	587
23	649
24	716
25	785
26	858
27	933
28	1012
29	1095
30	1180
31	1269
32	1361
33	1456
34	1555
35	1656
36	1761
37	1870
38	1981
39	2096
40	2214
41	2335
42	2459
43	2587
44	2718
45	2852
46	2989
47	3130
48	3274
49	3421
50	3571
51	3725
52	3881
53	4042

[0, 4, 9, 18, 30, 45, 63, 84, 108, 135, 166, 200, 237, 277, 321, 367, 417, 471, 527, 587, 649, 716, 785, 858, 933, 1012, 1095, 1180, 1269, 1361, 1456, 1555, 1656, 1761, 1870, 1981, 2096, 2214, 2335, 2459, 2587, 2718, 2852, 2989, 3130, 3274, 3421, 3571, 3725, 3881, 4042]

cp's OEIS Frontend

A244096 Rounded down area ratio of a circle inscribed in a congruent triangle of a regular n-gon and a circle inscribed between a side of such an n-gon and a circumscribed unit circle.

Table of values

List of values