A025254 - OEIS

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A025254 as a simple table

`n`		`a(n)`
`1`		`3`
`2`		`1`
`3`		`1`
`4`		`3`
`5`		`10`
`6`		`34`
`7`		`118`
`8`		`417`
`9`		`1497`
`10`		`5448`
`11`		`20063`
`12`		`74649`
`13`		`280252`
`14`		`1060439`
`15`		`4040413`
`16`		`15488981`
`17`		`59701236`
`18`		`231236830`
`19`		`899559100`
`20`		`3513314664`
`21`		`13770811198`
`22`		`54152480421`
`23`		`213585706927`
`24`		`844723104691`
`25`		`3349274471386`
`26`		`13310603555085`
`27`		`53012829376985`

[3,1,1,3,10,34,118,417,1497,5448,20063,74649, 280252,1060439,4040413,15488981,59701236, 231236830,899559100,3513314664,13770811198, 54152480421,213585706927,844723104691, 3349274471386,13310603555085,53012829376985]

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Last modified August 26 02:15 EDT 2024. Contains 375454 sequences. (Running on oeis4.)