A187848 - OEIS

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A187848 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`20`
`3`		`120`
`4`		`836`
`5`		`6608`
`6`		`58324`
`7`		`568296`
`8`		`6060340`
`9`		`70245856`
`10`		`879937892`
`11`		`11853424536`
`12`		`170963881892`
`13`		`2629912684784`
`14`		`42995842035316`
`15`		`744683072665416`
`16`		`13624184625098644`
`17`		`262594854417561856`
`18`		`5319099368762699012`
`19`		`112977659152942035192`
`20`		`2511041582408699358980`

[1,4,20,120,836,6608,58324,568296,6060340, 70245856,879937892,11853424536,170963881892, 2629912684784,42995842035316,744683072665416, 13624184625098644,262594854417561856, 5319099368762699012,112977659152942035192, 2511041582408699358980]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)