A046879 - cp's OEIS frontend

A046879 Denominator of (1/n)*Sum_{k=0..n-1} 1/binomial(n-1,k) for n>0 else 1.

n	a(n)
0	1
1	1
2	1
3	6
4	3
5	15
6	30
7	420
8	105
9	315
10	315
11	6930
12	3465
13	90090
14	180180
15	72072
16	9009
17	153153
18	153153
19	5819814
20	14549535
21	14549535
22	29099070
23	1338557220
24	334639305
25	1673196525
26	1673196525
27	10039179150
28	10039179150
29	582272390700
30	1164544781400

[1, 1, 1, 6, 3, 15, 30, 420, 105, 315, 315, 6930, 3465, 90090, 180180, 72072, 9009, 153153, 153153, 5819814, 14549535, 14549535, 29099070, 1338557220, 334639305, 1673196525, 1673196525, 10039179150, 10039179150, 582272390700, 1164544781400]

cp's OEIS Frontend

A046879 Denominator of (1/n)*Sum_{k=0..n-1} 1/binomial(n-1,k) for n>0 else 1.

Table of values

List of values