A030240 as tables, graphs or sounds

A030240 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`7`
`2`		`42`
`3`		`245`
`4`		`1421`
`5`		`8232`
`6`		`47677`
`7`		`276115`
`8`		`1599066`
`9`		`9260657`
`10`		`53631137`
`11`		`310593360`
`12`		`1798735561`
`13`		`10416995407`
`14`		`60327818922`
`15`		`349375764605`
`16`		`2023335619781`
`17`		`11717718986232`
`18`		`67860683565157`
`19`		`393000752052475`

[1,7,42,245,1421,8232,47677,276115,1599066, 9260657,53631137,310593360,1798735561,10416995407, 60327818922,349375764605,2023335619781, 11717718986232,67860683565157,393000752052475]

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research