A028248 - OEIS

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A028248 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`7`
`5`		`21`
`6`		`126`
`7`		`638`
`8`		`4264`
`9`		`28983`
`10`		`226018`
`11`		`1872300`
`12`		`16940661`
`13`		`163461455`
`14`		`1688378030`
`15`		`18501971647`
`16`		`214749109038`
`17`		`2628228896227`
`18`		`33832314246857`
`19`		`456730760934125`
`20`		`6451399211318995`
`21`		`95135434800384144`
`22`		`1461771954435844296`
`23`		`23360315241127222572`

[1,0,1,1,7,21,126,638,4264,28983,226018,1872300, 16940661,163461455,1688378030,18501971647, 214749109038,2628228896227,33832314246857, 456730760934125,6451399211318995, 95135434800384144,1461771954435844296, 23360315241127222572]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)