A004383 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A004383 as a simple table

n	a(n)
2	1
3	24
4	496
5	9880
6	194580
7	3819816
8	74974368
9	1473109704
10	28987537150
11	571350360240
12	11279926456656
13	223044792457760
14	4416904685676756
15	87586833265107120
16	1739040916651368000
17	34569147570568156800

[1,24,496,9880,194580,3819816,74974368,1473109704, 28987537150,571350360240,11279926456656, 223044792457760,4416904685676756, 87586833265107120,1739040916651368000, 34569147570568156800]