A011780 as tables, graphs or sounds

A011780 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`6`
`2`		`26`
`3`		`92`
`4`		`291`
`5`		`850`
`6`		`2348`
`7`		`6216`
`8`		`15925`
`9`		`39742`
`10`		`97086`
`11`		`233012`
`12`		`550983`
`13`		`1286442`
`14`		`2970960`
`15`		`6796320`
`16`		`15417945`
`17`		`34719510`
`18`		`77672290`
`19`		`172743180`
`20`		`382147691`
`21`		`841346306`
`22`		`1844250996`
`23`		`4026531832`
`24`		`8758949501`
`25`		`18989322990`

[1,6,26,92,291,850,2348,6216,15925,39742,97086, 233012,550983,1286442,2970960,6796320,15417945, 34719510,77672290,172743180,382147691,841346306, 1844250996,4026531832,8758949501,18989322990]

Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research