A048021 - OEIS

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A048021 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`1`
`6`		`5`
`7`		`15`
`8`		`30`
`9`		`70`
`10`		`141`
`11`		`213`
`12`		`405`
`13`		`765`
`14`		`1110`
`15`		`2310`
`16`		`4954`
`17`		`7435`
`18`		`16575`
`19`		`35945`
`20`		`52871`
`21`		`113815`
`22`		`240385`
`23`		`346745`
`24`		`744345`
`25`		`1595433`
`26`		`2299998`
`27`		`5036862`
`28`		`10959446`
`29`		`15770601`
`30`		`34636245`
`31`		`75326163`
`32`		`107787262`
`33`		`236331302`
`34`		`514828047`

[0,0,0,0,1,5,15,30,70,141,213,405,765,1110,2310, 4954,7435,16575,35945,52871,113815,240385,346745, 744345,1595433,2299998,5036862,10959446,15770601, 34636245,75326163,107787262,236331302,514828047]

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Last modified June 3 21:42 EDT 2023. Contains 363116 sequences. (Running on oeis4.)