A151251 - OEIS

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A151251 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`18`
`3`		`84`
`4`		`400`
`5`		`1928`
`6`		`9368`
`7`		`45776`
`8`		`224608`
`9`		`1105536`
`10`		`5454784`
`11`		`26966272`
`12`		`133518464`
`13`		`661936512`
`14`		`3285120384`
`15`		`16318182656`
`16`		`81118238208`
`17`		`403499984896`
`18`		`2008203312128`
`19`		`9999508994048`
`20`		`49811499909120`
`21`		`248220669087744`
`22`		`1237327213948928`
`23`		`6169546670055424`
`24`		`30770185224601600`
`25`		`153498159158099968`

[1,4,18,84,400,1928,9368,45776,224608,1105536, 5454784,26966272,133518464,661936512,3285120384, 16318182656,81118238208,403499984896, 2008203312128,9999508994048,49811499909120, 248220669087744,1237327213948928,6169546670055424, 30770185224601600,153498159158099968]

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Last modified August 3 23:57 EDT 2024. Contains 374905 sequences. (Running on oeis4.)