A126787 as tables, graphs or sounds

A126787 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`14`
`4`		`66`
`5`		`308`
`6`		`1888`
`7`		`12240`
`8`		`95640`
`9`		`827904`
`10`		`8106960`
`11`		`87387264`
`12`		`1035645312`
`13`		`13316300928`
`14`		`184988692800`
`15`		`2756878875648`
`16`		`43888205438208`
`17`		`742943286892800`
`18`		`13326434312808960`
`19`		`252448071959572992`
`20`		`5036116692383428608`

[1,1,4,14,66,308,1888,12240,95640,827904,8106960, 87387264,1035645312,13316300928,184988692800, 2756878875648,43888205438208,742943286892800, 13326434312808960,252448071959572992, 5036116692383428608]

Last modified December 4 12:48 EST 2009. Contains 170310 sequences.

AT&T Labs Research