A113989 as tables, graphs or sounds

A113989 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`8`
`4`		`18`
`5`		`46`
`6`		`136`
`7`		`464`
`8`		`1818`
`9`		`8122`
`10`		`41076`
`11`		`233472`
`12`		`1480946`
`13`		`10412590`
`14`		`80634432`
`15`		`683674832`
`16`		`6312152354`
`17`		`63144706754`
`18`		`681317547508`
`19`		`7896054343496`
`20`		`97919789763074`
`21`		`1294863406981790`
`22`		`18200820837825480`
`23`		`271147632138373600`

[1,2,4,8,18,46,136,464,1818,8122,41076,233472, 1480946,10412590,80634432,683674832,6312152354, 63144706754,681317547508,7896054343496, 97919789763074,1294863406981790,18200820837825480, 271147632138373600]

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

AT&T Labs Research