A040016 as tables, graphs or sounds

A040016 formatted as a simple table:

`n`		`a(n)`
`1`		`2`
`2`		`7`
`3`		`19`
`4`		`53`
`5`		`139`
`6`		`401`
`7`		`1093`
`8`		`2971`
`9`		`8101`
`10`		`22013`
`11`		`59863`
`12`		`162751`
`13`		`442399`
`14`		`1202603`
`15`		`3269011`
`16`		`8886109`
`17`		`24154939`
`18`		`65659969`
`19`		`178482289`
`20`		`485165141`
`21`		`1318815713`
`22`		`3584912833`
`23`		`9744803443`
`24`		`26489122081`
`25`		`72004899319`
`26`		`195729609407`

[2,7,19,53,139,401,1093,2971,8101,22013,59863, 162751,442399,1202603,3269011,8886109,24154939, 65659969,178482289,485165141,1318815713, 3584912833,9744803443,26489122081,72004899319, 195729609407]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research