A141221 as tables, graphs or sounds

A141221 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`30`
`3`		`156`
`4`		`826`
`5`		`4406`
`6`		`23562`
`7`		`126104`
`8`		`675074`
`9`		`3614142`
`10`		`19349430`
`11`		`103593804`
`12`		`554625898`
`13`		`2969386478`
`14`		`15897666066`
`15`		`85113810056`
`16`		`455687062274`
`17`		`2439682811478`
`18`		`13061709929934`
`19`		`69930511268508`
`20`		`374397872321626`

[0,30,156,826,4406,23562,126104,675074,3614142, 19349430,103593804,554625898,2969386478, 15897666066,85113810056,455687062274, 2439682811478,13061709929934,69930511268508, 374397872321626]

Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

AT&T Labs Research