A002218 as tables, graphs or sounds

A002218 formatted as a simple table:

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`3`
`5`		`10`
`6`		`56`
`7`		`468`
`8`		`7123`
`9`		`194066`
`10`		`9743542`
`11`		`900969091`
`12`		`153620333545`
`13`		`48432939150704`
`14`		`28361824488394169`
`15`		`30995890806033380784`
`16`		`63501635429109597504951`
`17`		`244852079292073376010411280`
`18`		`1783160594069429925952824734641`
`19`		`24603887051350945867492816663958981`

[0,1,1,3,10,56,468,7123,194066,9743542,900969091, 153620333545,48432939150704,28361824488394169, 30995890806033380784,63501635429109597504951, 244852079292073376010411280, 1783160594069429925952824734641, 24603887051350945867492816663958981]

Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

AT&T Labs Research