A049428 as tables, graphs or sounds

A049428 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`6`
`3`		`36`
`4`		`246`
`5`		`2046`
`6`		`19716`
`7`		`209616`
`8`		`2441916`
`9`		`31050396`
`10`		`425883816`
`11`		`6244077456`
`12`		`97391939976`
`13`		`1609040166696`
`14`		`28029696862896`
`15`		`512903202039936`
`16`		`9829166157390096`
`17`		`196739739722616336`
`18`		`4102788435212513376`

[1,1,6,36,246,2046,19716,209616,2441916,31050396, 425883816,6244077456,97391939976,1609040166696, 28029696862896,512903202039936,9829166157390096, 196739739722616336,4102788435212513376]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research