A001257 as tables, graphs or sounds

A001257 formatted as a simple table:

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`16`
`4`		`81`
`5`		`400`
`6`		`2304`
`7`		`13225`
`8`		`81796`
`9`		`516961`
`10`		`3392964`
`11`		`22714756`
`12`		`155900196`
`13`		`1087218729`
`14`		`7710771721`
`15`		`55404215161`
`16`		`403030713409`
`17`		`2962388303281`
`18`		`21983682632976`
`19`		`164512124707984`
`20`		`1240577449436224`

[1,1,4,16,81,400,2304,13225,81796,516961,3392964, 22714756,155900196,1087218729,7710771721, 55404215161,403030713409,2962388303281, 21983682632976,164512124707984,1240577449436224]

Last modified December 5 08:23 EST 2009. Contains 170348 sequences.

AT&T Labs Research