A122420 as tables, graphs or sounds

A122420 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`10`
`4`		`120`
`5`		`1778`
`6`		`31685`
`7`		`661940`
`8`		`15882128`
`9`		`430607370`
`10`		`13022755068`
`11`		`434697574538`
`12`		`15875944361864`
`13`		`629756003982336`
`14`		`26963278837704185`
`15`		`1239382820431888898`
`16`		`60875147436141987437`
`17`		`3181961834442383306068`

[1,0,1,10,120,1778,31685,661940,15882128, 430607370,13022755068,434697574538,15875944361864, 629756003982336,26963278837704185, 1239382820431888898,60875147436141987437, 3181961834442383306068]

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

AT&T Labs Research