A006770 as tables, graphs or sounds - OEIS

A006770 formatted as a simple table:

`n`		`a(n)`
`1`		`1`
`2`		`4`
`3`		`20`
`4`		`110`
`5`		`638`
`6`		`3832`
`7`		`23592`
`8`		`147941`
`9`		`940982`
`10`		`6053180`
`11`		`39299408`
`12`		`257105146`
`13`		`1692931066`
`14`		`11208974860`
`15`		`74570549714`
`16`		`498174818986`
`17`		`3340366308393`

[1,4,20,110,638,3832,23592,147941,940982,6053180, 39299408,257105146,1692931066,11208974860, 74570549714,498174818986,3340366308393]

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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