A018218 - OEIS

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A018218 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`1`
`2`		`9`
`3`		`58`
`4`		`325`
`5`		`1686`
`6`		`8330`
`7`		`39796`
`8`		`185517`
`9`		`848830`
`10`		`3827230`
`11`		`17053356`
`12`		`75249954`
`13`		`329353948`
`14`		`1431575220`
`15`		`6185613032`
`16`		`26589395581`
`17`		`113780713806`
`18`		`484945025942`
`19`		`2059546425340`
`20`		`8719018250838`
`21`		`36805967321684`

[0,1,9,58,325,1686,8330,39796,185517,848830, 3827230,17053356,75249954,329353948,1431575220, 6185613032,26589395581,113780713806,484945025942, 2059546425340,8719018250838,36805967321684]

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Last modified April 24 13:58 EDT 2024. Contains 371960 sequences. (Running on oeis4.)