A040027 as tables, graphs or sounds

A040027 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`3`
`3`		`9`
`4`		`31`
`5`		`121`
`6`		`523`
`7`		`2469`
`8`		`12611`
`9`		`69161`
`10`		`404663`
`11`		`2512769`
`12`		`16485691`
`13`		`113842301`
`14`		`824723643`
`15`		`6249805129`
`16`		`49416246911`
`17`		`406754704841`
`18`		`3478340425563`
`19`		`30845565317189`
`20`		`283187362333331`
`21`		`2687568043654521`
`22`		`26329932233283223`

[1,1,3,9,31,121,523,2469,12611,69161,404663, 2512769,16485691,113842301,824723643,6249805129, 49416246911,406754704841,3478340425563, 30845565317189,283187362333331,2687568043654521, 26329932233283223]

Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research