A221891 - OEIS

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A221891 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`8`
`4`		`37`
`5`		`169`
`6`		`811`
`7`		`3878`
`8`		`18502`
`9`		`88302`
`10`		`421463`
`11`		`2011587`
`12`		`9601013`
`13`		`45824300`
`14`		`218713020`
`15`		`1043886804`
`16`		`4982326441`
`17`		`23779950797`
`18`		`113498396063`
`19`		`541712050514`
`20`		`2585516235106`
`21`		`12340309202426`
`22`		`58898578606299`
`23`		`281114719650631`

[0,0,8,37,169,811,3878,18502,88302,421463,2011587, 9601013,45824300,218713020,1043886804,4982326441, 23779950797,113498396063,541712050514, 2585516235106,12340309202426,58898578606299, 281114719650631]

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Last modified April 24 07:15 EDT 2024. Contains 371920 sequences. (Running on oeis4.)