A128327 - OEIS

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A128327 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`20`
`4`		`114`
`5`		`712`
`6`		`4772`
`7`		`33896`
`8`		`253102`
`9`		`1975610`
`10`		`16054568`
`11`		`135413280`
`12`		`1182664740`
`13`		`10675334958`
`14`		`99437919664`
`15`		`954581258020`
`16`		`9433732288486`
`17`		`95883201181772`
`18`		`1001411775057322`
`19`		`10738668800872594`
`20`		`118151145186400408`

[1,1,4,20,114,712,4772,33896,253102,1975610, 16054568,135413280,1182664740,10675334958, 99437919664,954581258020,9433732288486, 95883201181772,1001411775057322,10738668800872594, 118151145186400408]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)