A215710 - OEIS

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A215710 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`21`
`4`		`152`
`5`		`1360`
`6`		`15174`
`7`		`184296`
`8`		`2538584`
`9`		`39097296`
`10`		`656793720`
`11`		`12021152616`
`12`		`237610299288`
`13`		`5033625978576`
`14`		`113810068532328`
`15`		`2733480292962600`
`16`		`69463846973884800`
`17`		`1861656629684769600`
`18`		`52458209090931835584`
`19`		`1549997983761108724224`
`20`		`47908467697220966937600`

[1,1,2,21,152,1360,15174,184296,2538584,39097296, 656793720,12021152616,237610299288,5033625978576, 113810068532328,2733480292962600, 69463846973884800,1861656629684769600, 52458209090931835584,1549997983761108724224, 47908467697220966937600]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)