A011937 - cp's OEIS frontend

A011937 a(n) = floor( n(n-1)(n-2)*(n-3)/27 ).

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	4
6	13
7	31
8	62
9	112
10	186
11	293
12	440
13	635
14	889
15	1213
16	1617
17	2115
18	2720
19	3445
20	4306
21	5320
22	6502
23	7871
24	9445
25	11244
26	13288
27	15600
28	18200
29	21112
30	24360
31	27968
32	31964
33	36373
34	41223
35	46542
36	52360
37	58706
38	65613
39	73112
40	81235
41	90017
42	99493
43	109697
44	120667
45	132440
46	145053
47	158546
48	172960
49	188334

[0, 0, 0, 0, 0, 4, 13, 31, 62, 112, 186, 293, 440, 635, 889, 1213, 1617, 2115, 2720, 3445, 4306, 5320, 6502, 7871, 9445, 11244, 13288, 15600, 18200, 21112, 24360, 27968, 31964, 36373, 41223, 46542, 52360, 58706, 65613, 73112, 81235, 90017, 99493, 109697, 120667, 132440, 145053, 158546, 172960, 188334]

cp's OEIS Frontend

A011937 a(n) = floor( n(n-1)(n-2)*(n-3)/27 ).

Table of values

List of values

cp's OEIS Frontend

A011937 a(n) = floor( n*(n-1)*(n-2)*(n-3)/27 ).

Table of values

List of values

A011937 a(n) = floor( n(n-1)(n-2)*(n-3)/27 ).