A005560 as tables, graphs or sounds - OEIS

A005560 formatted as a simple table:

`n`		`a(n)`
`2`		`1`
`3`		`3`
`4`		`15`
`5`		`45`
`6`		`189`
`7`		`588`
`8`		`2352`
`9`		`7560`
`10`		`29700`
`11`		`98010`
`12`		`382239`
`13`		`1288287`
`14`		`5010005`
`15`		`17177160`
`16`		`66745536`
`17`		`232092432`
`18`		`901995588`
`19`		`3173688180`
`20`		`12342120700`
`21`		`43861998180`

[1,3,15,45,189,588,2352,7560,29700,98010,382239, 1288287,5010005,17177160,66745536,232092432, 901995588,3173688180,12342120700,43861998180]

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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