A001453 as tables, graphs or sounds

A001453 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`4`
`4`		`13`
`5`		`41`
`6`		`131`
`7`		`428`
`8`		`1429`
`9`		`4861`
`10`		`16795`
`11`		`58785`
`12`		`208011`
`13`		`742899`
`14`		`2674439`
`15`		`9694844`
`16`		`35357669`
`17`		`129644789`
`18`		`477638699`
`19`		`1767263189`
`20`		`6564120419`
`21`		`24466267019`
`22`		`91482563639`
`23`		`343059613649`
`24`		`1289904147323`
`25`		`4861946401451`
`26`		`18367353072151`

[1,4,13,41,131,428,1429,4861,16795,58785,208011, 742899,2674439,9694844,35357669,129644789, 477638699,1767263189,6564120419,24466267019, 91482563639,343059613649,1289904147323, 4861946401451,18367353072151]

Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

AT&T Labs Research