A033651 as tables, graphs or sounds

A033651 formatted as a simple table:

`n`		`a(n)`
`0`		`9`
`1`		`18`
`2`		`99`
`3`		`198`
`4`		`1089`
`5`		`10890`
`6`		`20691`
`7`		`40293`
`8`		`79497`
`9`		`158994`
`10`		`658845`
`11`		`1207701`
`12`		`2284722`
`13`		`4559544`
`14`		`9019098`
`15`		`17928207`
`16`		`88211178`
`17`		`175322466`
`18`		`839546037`
`19`		`1570191975`
`20`		`7362102726`
`21`		`13634115363`
`22`		`49985258994`

[9,18,99,198,1089,10890,20691,40293,79497,158994, 658845,1207701,2284722,4559544,9019098,17928207, 88211178,175322466,839546037,1570191975, 7362102726,13634115363,49985258994]

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

AT&T Labs Research