A025166 as tables, graphs or sounds

A025166 formatted as a simple table:

`n`		`a(n)`
`0`		`-1`
`1`		`-1`
`2`		`-1`
`3`		`7`
`4`		`127`
`5`		`1711`
`6`		`23231`
`7`		`334391`
`8`		`5144063`
`9`		`84149983`
`10`		`1446872959`
`11`		`25661798119`
`12`		`454494403199`
`13`		`7489030040207`
`14`		`89680375568447`
`15`		`-759618144120809`
`16`		`-127049044802971649`
`17`		`-7480338932613448769`
`18`		`-369274690558092738817`
`19`		`-17262533154073740329017`

[-1,-1,-1,7,127,1711,23231,334391,5144063, 84149983,1446872959,25661798119,454494403199, 7489030040207,89680375568447,-759618144120809, -127049044802971649,-7480338932613448769, -369274690558092738817,-17262533154073740329017]

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research