A007901 - OEIS

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A007901 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`4`
`6`		`22`
`7`		`98`
`8`		`412`
`9`		`1700`
`10`		`6974`
`11`		`28576`
`12`		`117146`
`13`		`480722`
`14`		`1974914`
`15`		`8122084`
`16`		`33435390`
`17`		`137757480`
`18`		`567998152`
`19`		`2343472004`
`20`		`9674252070`
`21`		`39956606552`
`22`		`165099840920`
`23`		`682446679582`
`24`		`2821858504062`
`25`		`11671572244666`
`26`		`48287711006032`
`27`		`199822535773958`
`28`		`827069530795224`
`29`		`3423890026639184`
`30`		`14176516741276534`

[0,0,0,0,4,22,98,412,1700,6974,28576,117146, 480722,1974914,8122084,33435390,137757480, 567998152,2343472004,9674252070,39956606552, 165099840920,682446679582,2821858504062, 11671572244666,48287711006032,199822535773958, 827069530795224,3423890026639184, 14176516741276534]

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Last modified May 12 17:59 EDT 2024. Contains 372493 sequences. (Running on oeis4.)