A166990 - OEIS

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A166990 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`7`
`3`		`30`
`4`		`147`
`5`		`786`
`6`		`4472`
`7`		`26644`
`8`		`164477`
`9`		`1044258`
`10`		`6782484`
`11`		`44887236`
`12`		`301782361`
`13`		`2056250570`
`14`		`14172792355`
`15`		`98667874038`
`16`		`692948001906`
`17`		`4904403499992`
`18`		`34951124337300`
`19`		`250617829087656`
`20`		`1807055528439771`
`21`		`13095146839953030`

[1,2,7,30,147,786,4472,26644,164477,1044258, 6782484,44887236,301782361,2056250570,14172792355, 98667874038,692948001906,4904403499992, 34951124337300,250617829087656,1807055528439771, 13095146839953030]

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Last modified April 24 14:32 EDT 2024. Contains 371960 sequences. (Running on oeis4.)