A028725 - cp's OEIS frontend

A028725 a(n) = floor(n/2) * floor((n-1)/2) * floor((n-2)/2) * floor((n-3)/2) * floor((n-4)/2) / 12.

n	a(n)
0	0
1	0
2	0
3	0
4	0
5	0
6	1
7	3
8	12
9	24
10	60
11	100
12	200
13	300
14	525
15	735
16	1176
17	1568
18	2352
19	3024
20	4320
21	5400
22	7425
23	9075
24	12100
25	14520
26	18876
27	22308
28	28392
29	33124
30	41405
31	47775
32	58800
33	67200
34	81600
35	92480
36	110976
37	124848
38	148257
39	165699
40	194940
41	216600
42	252700
43	279300

[0, 0, 0, 0, 0, 0, 1, 3, 12, 24, 60, 100, 200, 300, 525, 735, 1176, 1568, 2352, 3024, 4320, 5400, 7425, 9075, 12100, 14520, 18876, 22308, 28392, 33124, 41405, 47775, 58800, 67200, 81600, 92480, 110976, 124848, 148257, 165699, 194940, 216600, 252700, 279300]

cp's OEIS Frontend

A028725 a(n) = floor(n/2) * floor((n-1)/2) * floor((n-2)/2) * floor((n-3)/2) * floor((n-4)/2) / 12.

Table of values

List of values