A163640 - OEIS

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A163640 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`6`
`2`		`30`
`3`		`70`
`4`		`210`
`5`		`462`
`6`		`6006`
`7`		`4290`
`8`		`72930`
`9`		`461890`
`10`		`1939938`
`11`		`4056234`
`12`		`6760390`
`13`		`1560090`
`14`		`6463230`
`15`		`200360130`
`16`		`2203961430`
`17`		`907513530`
`18`		`33578000610`
`19`		`22974421470`
`20`		`941951280270`

[1,6,30,70,210,462,6006,4290,72930,461890,1939938, 4056234,6760390,1560090,6463230,200360130, 2203961430,907513530,33578000610,22974421470, 941951280270]

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)