A112291 - cp's OEIS frontend

A112291 Denominator of sum{k=1 to n} 1/S(n,k), where S(n,k) is a Stirling number of the second kind.

n	a(n)
1	1
2	1
3	3
4	42
5	150
6	36270
7	270900
8	9440379900
9	3332912051700
10	2004302168707167000
11	1424191116445997823000
12	3936008766237071969447818200
13	10888542544398564939894000
14	3606055788316324023953497288103040

[1, 1, 3, 42, 150, 36270, 270900, 9440379900, 3332912051700, 2004302168707167000, 1424191116445997823000, 3936008766237071969447818200, 10888542544398564939894000, 3606055788316324023953497288103040]

cp's OEIS Frontend

A112291 Denominator of sum{k=1 to n} 1/S(n,k), where S(n,k) is a Stirling number of the second kind.

Table of values

List of values