A038078 as tables, graphs or sounds

A038078 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`1`
`3`		`2`
`4`		`6`
`5`		`20`
`6`		`69`
`7`		`270`
`8`		`1026`
`9`		`4120`
`10`		`16794`
`11`		`70230`
`12`		`298306`
`13`		`1288912`
`14`		`5642559`
`15`		`25007756`
`16`		`111998920`
`17`		`506348902`
`18`		`2308338456`
`19`		`10602357346`
`20`		`49026021552`
`21`		`228085486580`
`22`		`1067020210339`
`23`		`5016982766202`
`24`		`23698640081356`

[1,2,1,2,6,20,69,270,1026,4120,16794,70230,298306, 1288912,5642559,25007756,111998920,506348902, 2308338456,10602357346,49026021552,228085486580, 1067020210339,5016982766202,23698640081356]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research