A151284 as tables, graphs or sounds

A151284 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`6`
`3`		`20`
`4`		`70`
`5`		`254`
`6`		`942`
`7`		`3550`
`8`		`13532`
`9`		`52030`
`10`		`201386`
`11`		`783560`
`12`		`3061442`
`13`		`12001804`
`14`		`47181278`
`15`		`185904220`
`16`		`733908634`
`17`		`2901998092`
`18`		`11490757796`
`19`		`45552262860`
`20`		`180762964146`
`21`		`717939220774`
`22`		`2853611232902`
`23`		`11349816190552`
`24`		`45168339253888`
`25`		`179845805435900`
`26`		`716409551285034`
`27`		`2854926106932244`

[1,2,6,20,70,254,942,3550,13532,52030,201386, 783560,3061442,12001804,47181278,185904220, 733908634,2901998092,11490757796,45552262860, 180762964146,717939220774,2853611232902, 11349816190552,45168339253888,179845805435900, 716409551285034,2854926106932244]

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research