A219971 - OEIS

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A219971 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`3`
`3`		`13`
`4`		`31`
`5`		`170`
`6`		`804`
`7`		`2744`
`8`		`12343`
`9`		`55657`
`10`		`214485`
`11`		`923990`
`12`		`4008013`
`13`		`16241904`
`14`		`68963484`
`15`		`293830787`
`16`		`1216393406`
`17`		`5135225641`
`18`		`21711233759`
`19`		`90692128053`
`20`		`381960417890`
`21`		`1609647053073`
`22`		`6749229887672`
`23`		`28396742081001`
`24`		`119506154362773`
`25`		`501879008939056`

[1,0,3,13,31,170,804,2744,12343,55657,214485, 923990,4008013,16241904,68963484,293830787, 1216393406,5135225641,21711233759,90692128053, 381960417890,1609647053073,6749229887672, 28396742081001,119506154362773,501879008939056]

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Last modified April 23 09:22 EDT 2024. Contains 371905 sequences. (Running on oeis4.)