A011907 - cp's OEIS frontend

A011907 a(n) = floor( n(n-1)(n-2)/25 ).

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	2
6	4
7	8
8	13
9	20
10	28
11	39
12	52
13	68
14	87
15	109
16	134
17	163
18	195
19	232
20	273
21	319
22	369
23	425
24	485
25	552
26	624
27	702
28	786
29	876
30	974
31	1078
32	1190
33	1309
34	1436
35	1570
36	1713
37	1864
38	2024
39	2193
40	2371
41	2558
42	2755
43	2961
44	3178
45	3405
46	3643
47	3891
48	4151
49	4421
50	4704
51	4998
52	5304
53	5622
54	5952
55	6296
56	6652
57	7022
58	7405
59	7802
60	8212
61	8637
62	9076
63	9530
64	9999
65	10483
66	10982
67	11497
68	12027

[0, 0, 0, 0, 0, 2, 4, 8, 13, 20, 28, 39, 52, 68, 87, 109, 134, 163, 195, 232, 273, 319, 369, 425, 485, 552, 624, 702, 786, 876, 974, 1078, 1190, 1309, 1436, 1570, 1713, 1864, 2024, 2193, 2371, 2558, 2755, 2961, 3178, 3405, 3643, 3891, 4151, 4421, 4704, 4998, 5304, 5622, 5952, 6296, 6652, 7022, 7405, 7802, 8212, 8637, 9076, 9530, 9999, 10483, 10982, 11497, 12027]

cp's OEIS Frontend

A011907 a(n) = floor( n(n-1)(n-2)/25 ).

Table of values

List of values

cp's OEIS Frontend

A011907 a(n) = floor( n*(n-1)*(n-2)/25 ).

Table of values

List of values

A011907 a(n) = floor( n(n-1)(n-2)/25 ).