A148997 as tables, graphs or sounds

A148997 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`3`
`3`		`9`
`4`		`33`
`5`		`121`
`6`		`468`
`7`		`1859`
`8`		`7558`
`9`		`31270`
`10`		`131330`
`11`		`558115`
`12`		`2396603`
`13`		`10379648`
`14`		`45292679`
`15`		`198926208`
`16`		`878692550`
`17`		`3900981744`
`18`		`17396764823`
`19`		`77896353911`
`20`		`350065380105`
`21`		`1578398595372`
`22`		`7138256186788`
`23`		`32371596240950`
`24`		`147175354377729`
`25`		`670685606484390`
`26`		`3062947647863016`
`27`		`14016157023522647`

[1,1,3,9,33,121,468,1859,7558,31270,131330,558115, 2396603,10379648,45292679,198926208,878692550, 3900981744,17396764823,77896353911,350065380105, 1578398595372,7138256186788,32371596240950, 147175354377729,670685606484390,3062947647863016, 14016157023522647]

Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

AT&T Labs Research