A038723 as tables, graphs or sounds

A038723 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`23`
`3`		`134`
`4`		`781`
`5`		`4552`
`6`		`26531`
`7`		`154634`
`8`		`901273`
`9`		`5253004`
`10`		`30616751`
`11`		`178447502`
`12`		`1040068261`
`13`		`6061962064`
`14`		`35331704123`
`15`		`205928262674`
`16`		`1200237871921`
`17`		`6995498968852`
`18`		`40772755941191`
`19`		`237641036678294`
`20`		`1385073464128573`

[1,4,23,134,781,4552,26531,154634,901273,5253004, 30616751,178447502,1040068261,6061962064, 35331704123,205928262674,1200237871921, 6995498968852,40772755941191,237641036678294, 1385073464128573]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research