A123071 - OEIS

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A123071 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`12`
`4`		`36`
`5`		`120`
`6`		`400`
`7`		`1520`
`8`		`5776`
`9`		`23712`
`10`		`97344`
`11`		`431808`
`12`		`1915456`
`13`		`9012608`
`14`		`42406144`
`15`		`210988800`
`16`		`1049760000`
`17`		`5475340800`
`18`		`28558296064`
`19`		`155672726528`
`20`		`848579961856`
`21`		`4810614454272`
`22`		`27271456395264`
`23`		`160376430784512`
`24`		`943132599095296`
`25`		`5735299537018880`

[1,2,4,12,36,120,400,1520,5776,23712,97344,431808, 1915456,9012608,42406144,210988800,1049760000, 5475340800,28558296064,155672726528,848579961856, 4810614454272,27271456395264,160376430784512, 943132599095296,5735299537018880]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)