A002137 as tables, graphs or sounds

A002137 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`6`
`5`		`22`
`6`		`130`
`7`		`822`
`8`		`6202`
`9`		`52552`
`10`		`499194`
`11`		`5238370`
`12`		`60222844`
`13`		`752587764`
`14`		`10157945044`
`15`		`147267180508`
`16`		`2282355168060`
`17`		`37655004171808`
`18`		`658906772228668`
`19`		`12188911634495388`
`20`		`237669544014377896`
`21`		`4871976826254018760`
`22`		`104742902332392298296`

[1,0,1,1,6,22,130,822,6202,52552,499194,5238370, 60222844,752587764,10157945044,147267180508, 2282355168060,37655004171808,658906772228668, 12188911634495388,237669544014377896, 4871976826254018760,104742902332392298296]

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

AT&T Labs Research