A386858 - cp's OEIS frontend

A386858 a(n) = floor(5*n^2/8).

n	a(n)
1	0
2	2
3	5
4	10
5	15
6	22
7	30
8	40
9	50
10	62
11	75
12	90
13	105
14	122
15	140
16	160
17	180
18	202
19	225
20	250
21	275
22	302
23	330
24	360
25	390
26	422
27	455
28	490
29	525
30	562
31	600
32	640
33	680
34	722
35	765
36	810
37	855
38	902
39	950
40	1000
41	1050
42	1102
43	1155
44	1210
45	1265
46	1322
47	1380
48	1440
49	1500
50	1562
51	1625
52	1690
53	1755

[0, 2, 5, 10, 15, 22, 30, 40, 50, 62, 75, 90, 105, 122, 140, 160, 180, 202, 225, 250, 275, 302, 330, 360, 390, 422, 455, 490, 525, 562, 600, 640, 680, 722, 765, 810, 855, 902, 950, 1000, 1050, 1102, 1155, 1210, 1265, 1322, 1380, 1440, 1500, 1562, 1625, 1690, 1755]

cp's OEIS Frontend

A386858 a(n) = floor(5*n^2/8).

Table of values

List of values