A030625 as tables, graphs or sounds

A030625 formatted as a simple table:

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`6`
`3`		`12`
`4`		`24`
`5`		`40`
`6`		`72`
`7`		`126`
`8`		`240`
`9`		`459`
`10`		`940`
`11`		`1936`
`12`		`4104`
`13`		`8671`
`14`		`18508`
`15`		`39300`
`16`		`83616`
`17`		`177055`
`18`		`374652`
`19`		`789811`
`20`		`1662400`
`21`		`3488877`
`22`		`7309588`
`23`		`15279406`
`24`		`31886928`
`25`		`66422275`
`26`		`138157708`
`27`		`286924599`
`28`		`595102144`
`29`		`1232672869`

[0,2,6,12,24,40,72,126,240,459,940,1936,4104,8671, 18508,39300,83616,177055,374652,789811,1662400, 3488877,7309588,15279406,31886928,66422275, 138157708,286924599,595102144,1232672869]

Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research