A007460 as tables, graphs or sounds

A007460 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`7`
`4`		`20`
`5`		`58`
`6`		`174`
`7`		`519`
`8`		`1550`
`9`		`4634`
`10`		`13884`
`11`		`41616`
`12`		`124824`
`13`		`374390`
`14`		`1123288`
`15`		`3369297`
`16`		`10107324`
`17`		`30320434`
`18`		`90961626`
`19`		`272878138`
`20`		`818632094`
`21`		`2455888346`
`22`		`7367661682`
`23`		`22102935920`
`24`		`66308767426`
`25`		`198926187730`

[1,1,2,7,20,58,174,519,1550,4634,13884,41616, 124824,374390,1123288,3369297,10107324,30320434, 90961626,272878138,818632094,2455888346, 7367661682,22102935920,66308767426,198926187730]

Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research