A005222 - OEIS

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A005222 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`0`
`4`		`4`
`5`		`4`
`6`		`18`
`7`		`26`
`8`		`86`
`9`		`158`
`10`		`462`
`11`		`976`
`12`		`2665`
`13`		`6082`
`14`		`16040`
`15`		`38338`
`16`		`99536`
`17`		`244880`
`18`		`631923`
`19`		`1583796`
`20`		`4081939`
`21`		`10358670`
`22`		`26728731`
`23`		`68425494`
`24`		`176964795`
`25`		`455967376`
`26`		`1182454137`
`27`		`3061954102`
`28`		`7962768190`
`29`		`20702327552`
`30`		`53983118006`
`31`		`140817757006`

[1,0,1,0,4,4,18,26,86,158,462,976,2665,6082,16040, 38338,99536,244880,631923,1583796,4081939, 10358670,26728731,68425494,176964795,455967376, 1182454137,3061954102,7962768190,20702327552, 53983118006,140817757006]

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Last modified April 20 04:18 EDT 2024. Contains 371798 sequences. (Running on oeis4.)