A268939 - OEIS

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A268939 as a simple table

`n`		`a(n)`
`1`		`4`
`2`		`16`
`3`		`60`
`4`		`220`
`5`		`788`
`6`		`2780`
`7`		`9684`
`8`		`33404`
`9`		`114292`
`10`		`388444`
`11`		`1312788`
`12`		`4415548`
`13`		`14790836`
`14`		`49369628`
`15`		`164279892`
`16`		`545170172`
`17`		`1804855540`
`18`		`5962578652`
`19`		`19661140116`
`20`		`64722276796`
`21`		`212738159924`
`22`		`698312564636`
`23`		`2289419181780`
`24`		`7497612860540`

[4,16,60,220,788,2780,9684,33404,114292,388444, 1312788,4415548,14790836,49369628,164279892, 545170172,1804855540,5962578652,19661140116, 64722276796,212738159924,698312564636, 2289419181780,7497612860540]

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Last modified April 25 11:39 EDT 2024. Contains 371969 sequences. (Running on oeis4.)