A263673 - cp's OEIS frontend

A263673 a(n) = lcm{1,2,...,n} / binomial(n,floor(n/2)).

n	a(n)
0	1
1	1
2	1
3	2
4	2
5	6
6	3
7	12
8	12
9	20
10	10
11	60
12	30
13	210
14	105
15	56
16	56
17	504
18	252
19	2520
20	1260
21	660
22	330
23	3960
24	1980
25	5148
26	2574
27	4004
28	2002
29	30030
30	15015
31	240240
32	240240
33	123760
34	61880
35	31824
36	15912
37	302328
38	151164
39	77520
40	38760
41	813960
42	406980
43	8953560
44	4476780
45	2288132
46	1144066
47	27457584
48	13728792
49	49031400

[1, 1, 1, 2, 2, 6, 3, 12, 12, 20, 10, 60, 30, 210, 105, 56, 56, 504, 252, 2520, 1260, 660, 330, 3960, 1980, 5148, 2574, 4004, 2002, 30030, 15015, 240240, 240240, 123760, 61880, 31824, 15912, 302328, 151164, 77520, 38760, 813960, 406980, 8953560, 4476780, 2288132, 1144066, 27457584, 13728792, 49031400]

cp's OEIS Frontend

A263673 a(n) = lcm{1,2,...,n} / binomial(n,floor(n/2)).

Table of values

List of values