A120420 as tables, graphs or sounds

A120420 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`19`
`4`		`428`
`5`		`17746`
`6`		`1178792`
`7`		`114892114`
`8`		`15465685088`
`9`		`2750970320776`
`10`		`625218940868432`
`11`		`176816078759177584`
`12`		`60910324282361987648`
`13`		`25113805147553980835056`
`14`		`12212353714587611449244672`

[1,2,19,428,17746,1178792,114892114,15465685088, 2750970320776,625218940868432,176816078759177584, 60910324282361987648,25113805147553980835056, 12212353714587611449244672]

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

AT&T Labs Research