A000307 as tables, graphs or sounds

A000307 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`22`
`4`		`154`
`5`		`1304`
`6`		`12915`
`7`		`146115`
`8`		`1855570`
`9`		`26097835`
`10`		`402215465`
`11`		`6734414075`
`12`		`121629173423`
`13`		`2355470737637`
`14`		`48664218965021`
`15`		`1067895971109199`
`16`		`24795678053493443`
`17`		`607144847919796830`
`18`		`15630954703539323090`

[1,1,4,22,154,1304,12915,146115,1855570,26097835, 402215465,6734414075,121629173423,2355470737637, 48664218965021,1067895971109199,24795678053493443, 607144847919796830,15630954703539323090]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research