A026618 - OEIS

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A026618 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`11`
`3`		`50`
`4`		`212`
`5`		`870`
`6`		`3509`
`7`		`14014`
`8`		`55640`
`9`		`220116`
`10`		`868870`
`11`		`3425092`
`12`		`13491064`
`13`		`53117350`
`14`		`209097945`
`15`		`823111350`
`16`		`3240499440`
`17`		`12759776700`
`18`		`50254414650`
`19`		`197979380220`
`20`		`780170359800`
`21`		`3075303389340`

[1,11,50,212,870,3509,14014,55640,220116,868870, 3425092,13491064,53117350,209097945,823111350, 3240499440,12759776700,50254414650,197979380220, 780170359800,3075303389340]

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Last modified May 18 11:24 EDT 2013. Contains 225419 sequences.