A037504 as tables, graphs or sounds

A037504 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`15`
`4`		`46`
`5`		`140`
`6`		`420`
`7`		`1261`
`8`		`3785`
`9`		`11355`
`10`		`34066`
`11`		`102200`
`12`		`306600`
`13`		`919801`
`14`		`2759405`
`15`		`8278215`
`16`		`24834646`
`17`		`74503940`
`18`		`223511820`
`19`		`670535461`
`20`		`2011606385`
`21`		`6034819155`
`22`		`18104457466`
`23`		`54313372400`
`24`		`162940117200`
`25`		`488820351601`

[1,5,15,46,140,420,1261,3785,11355,34066,102200, 306600,919801,2759405,8278215,24834646,74503940, 223511820,670535461,2011606385,6034819155, 18104457466,54313372400,162940117200, 488820351601]

Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research