A001448 as tables, graphs or sounds

A001448 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`6`
`2`		`70`
`3`		`924`
`4`		`12870`
`5`		`184756`
`6`		`2704156`
`7`		`40116600`
`8`		`601080390`
`9`		`9075135300`
`10`		`137846528820`
`11`		`2104098963720`
`12`		`32247603683100`
`13`		`495918532948104`
`14`		`7648690600760440`
`15`		`118264581564861424`
`16`		`1832624140942590534`

[1,6,70,924,12870,184756,2704156,40116600, 601080390,9075135300,137846528820,2104098963720, 32247603683100,495918532948104,7648690600760440, 118264581564861424,1832624140942590534]

Last modified December 5 20:25 EST 2009. Contains 170428 sequences.

AT&T Labs Research