A011891 - cp's OEIS frontend

A011891 a(n) = floor(n(n-1)(n-2)/9).

n	a(n)
0	0
1	0
2	0
3	0
4	2
5	6
6	13
7	23
8	37
9	56
10	80
11	110
12	146
13	190
14	242
15	303
16	373
17	453
18	544
19	646
20	760
21	886
22	1026
23	1180
24	1349
25	1533
26	1733
27	1950
28	2184
29	2436
30	2706
31	2996
32	3306
33	3637
34	3989
35	4363
36	4760
37	5180
38	5624
39	6092
40	6586
41	7106
42	7653
43	8227
44	8829
45	9460
46	10120
47	10810
48	11530

[0, 0, 0, 0, 2, 6, 13, 23, 37, 56, 80, 110, 146, 190, 242, 303, 373, 453, 544, 646, 760, 886, 1026, 1180, 1349, 1533, 1733, 1950, 2184, 2436, 2706, 2996, 3306, 3637, 3989, 4363, 4760, 5180, 5624, 6092, 6586, 7106, 7653, 8227, 8829, 9460, 10120, 10810, 11530]

cp's OEIS Frontend

A011891 a(n) = floor(n(n-1)(n-2)/9).

Table of values

List of values

cp's OEIS Frontend

A011891 a(n) = floor(n*(n-1)*(n-2)/9).

Table of values

List of values

A011891 a(n) = floor(n(n-1)(n-2)/9).