A056841 - OEIS

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A056841 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`5`
`5`		`15`
`6`		`54`
`7`		`212`
`8`		`908`
`9`		`4011`
`10`		`18260`
`11`		`84320`
`12`		`394462`
`13`		`1860872`
`14`		`8843896`
`15`		`42275308`
`16`		`203113670`
`17`		`980101070`
`18`		`4747504560`
`19`		`23074132601`

[1,1,2,5,15,54,212,908,4011,18260,84320,394462, 1860872,8843896,42275308,203113670,980101070, 4747504560,23074132601]

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Last modified May 15 12:58 EDT 2024. Contains 372540 sequences. (Running on oeis4.)