A000137 as tables, graphs or sounds

A000137 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`18`
`5`		`58`
`6`		`186`
`7`		`614`
`8`		`2034`
`9`		`6818`
`10`		`22970`
`11`		`77858`
`12`		`264970`
`13`		`905294`
`14`		`3102434`
`15`		`10661370`
`16`		`36722642`
`17`		`126752218`
`18`		`438294018`
`19`		`1518032598`
`20`		`5265341314`
`21`		`18286911130`
`22`		`63586988434`
`23`		`221342104842`
`24`		`771235606050`
`25`		`2689688538646`
`26`		`9388096331642`

[1,2,6,18,58,186,614,2034,6818,22970,77858,264970, 905294,3102434,10661370,36722642,126752218, 438294018,1518032598,5265341314,18286911130, 63586988434,221342104842,771235606050, 2689688538646,9388096331642]

Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research