A221756 - OEIS

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A221756 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`2`
`3`		`1`
`4`		`9`
`5`		`17`
`6`		`64`
`7`		`171`
`8`		`536`
`9`		`1558`
`10`		`4689`
`11`		`13889`
`12`		`41437`
`13`		`123228`
`14`		`366983`
`15`		`1092232`
`16`		`3251610`
`17`		`9679073`
`18`		`28813033`
`19`		`85770153`
`20`		`255320984`
`21`		`760038643`
`22`		`2262482568`
`23`		`6734954798`
`24`		`20048604913`
`25`		`59680661697`
`26`		`177657315701`
`27`		`528850071604`

[0,2,1,9,17,64,171,536,1558,4689,13889,41437, 123228,366983,1092232,3251610,9679073,28813033, 85770153,255320984,760038643,2262482568, 6734954798,20048604913,59680661697,177657315701, 528850071604]

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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)