A054581 as tables, graphs or sounds

A054581 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`5`
`6`		`12`
`7`		`39`
`8`		`136`
`9`		`529`
`10`		`2171`
`11`		`9368`
`12`		`41534`
`13`		`188942`
`14`		`874906`
`15`		`4115060`
`16`		`19602156`
`17`		`94419351`
`18`		`459183768`
`19`		`2252217207`
`20`		`11130545494`
`21`		`55382155396`
`22`		`277255622646`
`23`		`1395731021610`
`24`		`7061871805974`
`25`		`35896206800034`
`26`		`183241761631584`

[1,1,1,2,5,12,39,136,529,2171,9368,41534,188942, 874906,4115060,19602156,94419351,459183768, 2252217207,11130545494,55382155396,277255622646, 1395731021610,7061871805974,35896206800034, 183241761631584]

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research