A012141 as tables, graphs or sounds

A012141 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`9`
`3`		`281`
`4`		`20913`
`5`		`2869329`
`6`		`613734393`
`7`		`185272366761`
`8`		`74333015297505`
`9`		`38107181118565665`
`10`		`24270343990842570345`
`11`		`18795056467624757017785`
`12`		`17394205995630055629900945`
`13`		`18964089582659357000823035505`

[1,1,9,281,20913,2869329,613734393,185272366761, 74333015297505,38107181118565665, 24270343990842570345,18795056467624757017785, 17394205995630055629900945, 18964089582659357000823035505]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research