A026072 as tables, graphs or sounds

A026072 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`3`
`3`		`13`
`4`		`76`
`5`		`427`
`6`		`2427`
`7`		`13871`
`8`		`79729`
`9`		`460473`
`10`		`2670394`
`11`		`15540822`
`12`		`90717305`
`13`		`530946697`
`14`		`3114680815`
`15`		`18308774295`
`16`		`107817336510`
`17`		`635942014275`
`18`		`3756423495198`
`19`		`22217666030882`
`20`		`131563775350068`

[1,3,13,76,427,2427,13871,79729,460473,2670394, 15540822,90717305,530946697,3114680815, 18308774295,107817336510,635942014275, 3756423495198,22217666030882,131563775350068]

Last modified December 19 21:04 EST 2009. Contains 171054 sequences.

AT&T Labs Research