A011940 - cp's OEIS frontend

A011940 a(n) = floor(n(n-1)(n-2)*(n-3)/30).

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	4
6	12
7	28
8	56
9	100
10	168
11	264
12	396
13	572
14	800
15	1092
16	1456
17	1904
18	2448
19	3100
20	3876
21	4788
22	5852
23	7084
24	8500
25	10120
26	11960
27	14040
28	16380
29	19000
30	21924
31	25172
32	28768
33	32736
34	37100
35	41888
36	47124
37	52836
38	59052
39	65800
40	73112
41	81016
42	89544
43	98728
44	108600
45	119196
46	130548
47	142692
48	155664
49	169500

[0, 0, 0, 0, 0, 4, 12, 28, 56, 100, 168, 264, 396, 572, 800, 1092, 1456, 1904, 2448, 3100, 3876, 4788, 5852, 7084, 8500, 10120, 11960, 14040, 16380, 19000, 21924, 25172, 28768, 32736, 37100, 41888, 47124, 52836, 59052, 65800, 73112, 81016, 89544, 98728, 108600, 119196, 130548, 142692, 155664, 169500]

cp's OEIS Frontend

A011940 a(n) = floor(n(n-1)(n-2)*(n-3)/30).

Table of values

List of values

cp's OEIS Frontend

A011940 a(n) = floor(n*(n-1)*(n-2)*(n-3)/30).

Table of values

List of values

A011940 a(n) = floor(n(n-1)(n-2)*(n-3)/30).