A031973 - OEIS

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A031973 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`7`
`3`		`40`
`4`		`341`
`5`		`3906`
`6`		`55987`
`7`		`960800`
`8`		`19173961`
`9`		`435848050`
`10`		`11111111111`
`11`		`313842837672`
`12`		`9726655034461`
`13`		`328114698808274`
`14`		`11966776581370171`
`15`		`469172025408063616`
`16`		`19676527011956855057`
`17`		`878942778254232811938`
`18`		`41660902667961039785743`
`19`		`2088331858752553232964200`

[1,2,7,40,341,3906,55987,960800,19173961, 435848050,11111111111,313842837672,9726655034461, 328114698808274,11966776581370171, 469172025408063616,19676527011956855057, 878942778254232811938,41660902667961039785743, 2088331858752553232964200]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)