A019472 as tables, graphs or sounds

A019472 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`1`
`3`		`7`
`4`		`51`
`5`		`421`
`6`		`3963`
`7`		`42253`
`8`		`505515`
`9`		`6724381`
`10`		`98618763`
`11`		`1582715773`
`12`		`27612565995`
`13`		`520631327581`
`14`		`10554164679243`
`15`		`228975516609853`
`16`		`5294731892093355`
`17`		`130015079601039901`
`18`		`3379132289551117323`
`19`		`92679942218919579133`
`20`		`2675254894236207563115`

[0,0,1,7,51,421,3963,42253,505515,6724381, 98618763,1582715773,27612565995,520631327581, 10554164679243,228975516609853,5294731892093355, 130015079601039901,3379132289551117323, 92679942218919579133,2675254894236207563115]

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

AT&T Labs Research