A003947 - OEIS

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A003947 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`5`
`2`		`20`
`3`		`80`
`4`		`320`
`5`		`1280`
`6`		`5120`
`7`		`20480`
`8`		`81920`
`9`		`327680`
`10`		`1310720`
`11`		`5242880`
`12`		`20971520`
`13`		`83886080`
`14`		`335544320`
`15`		`1342177280`
`16`		`5368709120`
`17`		`21474836480`
`18`		`85899345920`
`19`		`343597383680`
`20`		`1374389534720`
`21`		`5497558138880`
`22`		`21990232555520`
`23`		`87960930222080`
`24`		`351843720888320`

[1,5,20,80,320,1280,5120,20480,81920,327680, 1310720,5242880,20971520,83886080,335544320, 1342177280,5368709120,21474836480,85899345920, 343597383680,1374389534720,5497558138880, 21990232555520,87960930222080,351843720888320]

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Last modified May 4 13:33 EDT 2024. Contains 372243 sequences. (Running on oeis4.)