A006153 as tables, graphs or sounds

A006153 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`21`
`4`		`148`
`5`		`1305`
`6`		`13806`
`7`		`170401`
`8`		`2403640`
`9`		`38143377`
`10`		`672552730`
`11`		`13044463641`
`12`		`276003553860`
`13`		`6326524990825`
`14`		`156171026562838`
`15`		`4130464801497105`
`16`		`116526877671782896`
`17`		`3492868475952497313`
`18`		`110856698175372359346`
`19`		`3713836169709782989993`

[1,1,4,21,148,1305,13806,170401,2403640,38143377, 672552730,13044463641,276003553860,6326524990825, 156171026562838,4130464801497105, 116526877671782896,3492868475952497313, 110856698175372359346,3713836169709782989993]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research