A131519 as tables, graphs or sounds

A131519 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`6`
`3`		`66`
`4`		`714`
`5`		`7710`
`6`		`83226`
`7`		`898350`
`8`		`9696810`
`9`		`104667486`
`10`		`1129781946`
`11`		`12194877966`
`12`		`131631637962`
`13`		`1420833250878`
`14`		`15336488688474`
`15`		`165542216262126`
`16`		`1786864380862314`
`17`		`19287432460962078`
`18`		`208188743880291834`
`19`		`2247191437542514638`
`20`		`24256207433904571146`
`21`		`261821751919823278590`

[1,6,66,714,7710,83226,898350,9696810,104667486, 1129781946,12194877966,131631637962,1420833250878, 15336488688474,165542216262126,1786864380862314, 19287432460962078,208188743880291834, 2247191437542514638,24256207433904571146, 261821751919823278590]

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

AT&T Labs Research