A157546 as tables, graphs or sounds

A157546 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`9`
`4`		`54`
`5`		`1290`
`6`		`47385`
`7`		`1080891`
`8`		`19941831`
`9`		`335927439`
`10`		`5541820740`
`11`		`87714576070`
`12`		`1349748111657`
`13`		`20228679068676`
`14`		`290345411571852`
`15`		`3966279413712840`
`16`		`51810189395306490`
`17`		`652108043960695984`
`18`		`7955418278826810531`

[1,9,54,1290,47385,1080891,19941831,335927439, 5541820740,87714576070,1349748111657, 20228679068676,290345411571852,3966279413712840, 51810189395306490,652108043960695984, 7955418278826810531]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research