A087291 - OEIS

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A087291 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`2`
`2`		`18`
`3`		`98`
`4`		`450`
`5`		`1922`
`6`		`7938`
`7`		`32258`
`8`		`130050`
`9`		`522242`
`10`		`2093058`
`11`		`8380418`
`12`		`33538050`
`13`		`134184962`
`14`		`536805378`
`15`		`2147352578`
`16`		`8589672450`
`17`		`34359214082`
`18`		`137437904898`
`19`		`549753716738`
`20`		`2199019061250`

[0,2,18,98,450,1922,7938,32258,130050,522242, 2093058,8380418,33538050,134184962,536805378, 2147352578,8589672450,34359214082,137437904898, 549753716738,2199019061250]

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Last modified June 18 18:13 EDT 2013. Contains 226355 sequences.