A026377 - OEIS

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A026377 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`9`
`4`		`58`
`5`		`330`
`6`		`1770`
`7`		`9198`
`8`		`46928`
`9`		`236736`
`10`		`1185645`
`11`		`5909805`
`12`		`29362806`
`13`		`145570230`
`14`		`720606705`
`15`		`3563543025`
`16`		`17610412600`
`17`		`86989143480`
`18`		`429579843435`
`19`		`2121099312195`
`20`		`10472653252550`
`21`		`51708363376950`
`22`		`255326054688320`

[1,9,58,330,1770,9198,46928,236736,1185645, 5909805,29362806,145570230,720606705,3563543025, 17610412600,86989143480,429579843435, 2121099312195,10472653252550,51708363376950, 255326054688320]

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Last modified May 12 22:54 EDT 2024. Contains 372497 sequences. (Running on oeis4.)