A030975 as tables, graphs or sounds

A030975 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`7`
`4`		`30`
`5`		`154`
`6`		`924`
`7`		`6471`
`8`		`51771`
`9`		`465947`
`10`		`4659471`
`11`		`51254185`
`12`		`615050229`
`13`		`7995652977`
`14`		`111939141684`
`15`		`1679087125263`
`16`		`26865394004209`
`17`		`456711698071557`
`18`		`8220810565288034`
`19`		`156195400740472660`
`20`		`3123908014809453215`

[1,2,7,30,154,924,6471,51771,465947,4659471, 51254185,615050229,7995652977,111939141684, 1679087125263,26865394004209,456711698071557, 8220810565288034,156195400740472660, 3123908014809453215]

Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

AT&T Labs Research