A269507 - OEIS

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A269507 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`54`
`3`		`420`
`4`		`3088`
`5`		`25226`
`6`		`239994`
`7`		`2338286`
`8`		`23240168`
`9`		`232006814`
`10`		`2352889414`
`11`		`24069853302`
`12`		`248560741574`
`13`		`2582277394354`
`14`		`26997628173380`
`15`		`283652378887212`
`16`		`2994183763030920`
`17`		`31727834772912212`
`18`		`337396544704648686`

[4,54,420,3088,25226,239994,2338286,23240168, 232006814,2352889414,24069853302,248560741574, 2582277394354,26997628173380,283652378887212, 2994183763030920,31727834772912212, 337396544704648686]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)