A001570 as tables, graphs or sounds

A001570 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`13`
`3`		`181`
`4`		`2521`
`5`		`35113`
`6`		`489061`
`7`		`6811741`
`8`		`94875313`
`9`		`1321442641`
`10`		`18405321661`
`11`		`256353060613`
`12`		`3570537526921`
`13`		`49731172316281`
`14`		`692665874901013`
`15`		`9647591076297901`
`16`		`134373609193269601`
`17`		`1871582937629476513`
`18`		`26067787517619401581`
`19`		`363077442309042145621`

[1,13,181,2521,35113,489061,6811741,94875313, 1321442641,18405321661,256353060613,3570537526921, 49731172316281,692665874901013,9647591076297901, 134373609193269601,1871582937629476513, 26067787517619401581,363077442309042145621]

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

AT&T Labs Research