A027981 - OEIS

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A027981 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`10`
`2`		`40`
`3`		`124`
`4`		`340`
`5`		`868`
`6`		`2116`
`7`		`4996`
`8`		`11524`
`9`		`26116`
`10`		`58372`
`11`		`129028`
`12`		`282628`
`13`		`614404`
`14`		`1327108`
`15`		`2850820`
`16`		`6094852`
`17`		`12976132`
`18`		`27525124`
`19`		`58195972`
`20`		`122683396`
`21`		`257949700`
`22`		`541065220`
`23`		`1132462084`
`24`		`2365587460`
`25`		`4932501508`
`26`		`10267656196`

[1,10,40,124,340,868,2116,4996,11524,26116,58372, 129028,282628,614404,1327108,2850820,6094852, 12976132,27525124,58195972,122683396,257949700, 541065220,1132462084,2365587460,4932501508, 10267656196]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)