A033890 as tables, graphs or sounds

A033890 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`8`
`2`		`55`
`3`		`377`
`4`		`2584`
`5`		`17711`
`6`		`121393`
`7`		`832040`
`8`		`5702887`
`9`		`39088169`
`10`		`267914296`
`11`		`1836311903`
`12`		`12586269025`
`13`		`86267571272`
`14`		`591286729879`
`15`		`4052739537881`
`16`		`27777890035288`
`17`		`190392490709135`
`18`		`1304969544928657`
`19`		`8944394323791464`

[1,8,55,377,2584,17711,121393,832040,5702887, 39088169,267914296,1836311903,12586269025, 86267571272,591286729879,4052739537881, 27777890035288,190392490709135,1304969544928657, 8944394323791464]

Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research