A279169 - cp's OEIS frontend

A279169 a(n) = floor( 4*n^2/5 ).

n	a(n)
0	0
1	0
2	3
3	7
4	12
5	20
6	28
7	39
8	51
9	64
10	80
11	96
12	115
13	135
14	156
15	180
16	204
17	231
18	259
19	288
20	320
21	352
22	387
23	423
24	460
25	500
26	540
27	583
28	627
29	672
30	720
31	768
32	819
33	871
34	924
35	980
36	1036
37	1095
38	1155
39	1216
40	1280
41	1344
42	1411
43	1479
44	1548
45	1620
46	1692
47	1767
48	1843
49	1920
50	2000
51	2080
52	2163
53	2247

[0, 0, 3, 7, 12, 20, 28, 39, 51, 64, 80, 96, 115, 135, 156, 180, 204, 231, 259, 288, 320, 352, 387, 423, 460, 500, 540, 583, 627, 672, 720, 768, 819, 871, 924, 980, 1036, 1095, 1155, 1216, 1280, 1344, 1411, 1479, 1548, 1620, 1692, 1767, 1843, 1920, 2000, 2080, 2163, 2247]

cp's OEIS Frontend

A279169 a(n) = floor( 4*n^2/5 ).

Table of values

List of values