A005161 - OEIS

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A005161 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`2`
`4`		`6`
`5`		`33`
`6`		`286`
`7`		`4420`
`8`		`109820`
`9`		`4799134`
`10`		`340879665`
`11`		`42235307100`
`12`		`8564558139000`
`13`		`3012862604463000`
`14`		`1742901718473961200`
`15`		`1742218029490675762080`
`16`		`2873822682985675809192288`
`17`		`8167157387273280570395662320`
`18`		`38402596062535617548517706584760`
`19`		`310388509293255836481583597538626504`

[1,1,1,2,6,33,286,4420,109820,4799134,340879665, 42235307100,8564558139000,3012862604463000, 1742901718473961200,1742218029490675762080, 2873822682985675809192288, 8167157387273280570395662320, 38402596062535617548517706584760, 310388509293255836481583597538626504]

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)