A002903 - OEIS

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A002903 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`28`
`3`		`196`
`4`		`1324`
`5`		`8980`
`6`		`60028`
`7`		`402412`
`8`		`2675860`
`9`		`17826340`
`10`		`118145548`
`11`		`784024780`
`12`		`5184334996`
`13`		`34313323804`
`14`		`226516271020`
`15`		`1496391824212`
`16`		`9865667928796`
`17`		`65080520041804`
`18`		`428641139406628`
`19`		`2824446024265444`
`20`		`18587519784608836`
`21`		`122369125319060884`

[1,4,28,196,1324,8980,60028,402412,2675860, 17826340,118145548,784024780,5184334996, 34313323804,226516271020,1496391824212, 9865667928796,65080520041804,428641139406628, 2824446024265444,18587519784608836, 122369125319060884]

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Last modified April 19 10:38 EDT 2024. Contains 371791 sequences. (Running on oeis4.)