A002403 - OEIS

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A002403 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`15`
`4`		`528`
`5`		`3990`
`6`		`232305`
`7`		`4262895`
`8`		`128928632`
`9`		`1420184304`
`10`		`186936865290`
`11`		`2416826727315`
`12`		`436683783190248`
`13`		`6495589851083190`
`14`		`102988034105173217`
`15`		`3468347338313592735`
`16`		`1050976389766688264880`
`17`		`19771777981152440202960`
`18`		`7439086137698489458667340`
`19`		`154685313008524836907739370`
`20`		`3369940174123349111629009120`

[1,15,528,3990,232305,4262895,128928632, 1420184304,186936865290,2416826727315, 436683783190248,6495589851083190, 102988034105173217,3468347338313592735, 1050976389766688264880,19771777981152440202960, 7439086137698489458667340, 154685313008524836907739370, 3369940174123349111629009120]

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Last modified April 24 08:48 EDT 2024. Contains 371930 sequences. (Running on oeis4.)