A002816 - OEIS

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A002816 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`1`
`6`		`3`
`7`		`23`
`8`		`177`
`9`		`1553`
`10`		`14963`
`11`		`157931`
`12`		`1814453`
`13`		`22566237`
`14`		`302267423`
`15`		`4340478951`
`16`		`66541218865`
`17`		`1084982173641`
`18`		`18752743351339`
`19`		`342523093859011`
`20`		`6593167693927885`
`21`		`133408305489947029`
`22`		`2831112931136162775`
`23`		`62878579846490149375`
`24`		`1458746608689369440265`

[1,0,0,0,1,3,23,177,1553,14963,157931,1814453, 22566237,302267423,4340478951,66541218865, 1084982173641,18752743351339,342523093859011, 6593167693927885,133408305489947029, 2831112931136162775,62878579846490149375, 1458746608689369440265]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)