A013988 - OEIS

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A013988 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`1`
`4`		`55`
`5`		`15`
`6`		`1`
`7`		`935`
`8`		`295`
`9`		`30`
`10`		`1`
`11`		`21505`
`12`		`7425`
`13`		`925`
`14`		`50`
`15`		`1`
`16`		`623645`
`17`		`229405`
`18`		`32400`
`19`		`2225`
`20`		`75`
`21`		`1`
`22`		`21827575`
`23`		`8423415`
`24`		`1298605`
`25`		`103600`
`26`		`4550`
`27`		`105`
`28`		`1`
`29`		`894930575`
`30`		`358764175`
`31`		`59069010`
`32`		`5235405`
`33`		`271950`
`34`		`8330`
`35`		`140`
`36`		`1`
`37`		`42061737025`
`38`		`17398082625`
`39`		`3016869625`
`40`		`289426830`
`41`		`16929255`
`42`		`621810`
`43`		`14070`
`44`		`180`
`45`		`1`

[1,5,1,55,15,1,935,295,30,1,21505,7425,925,50,1, 623645,229405,32400,2225,75,1,21827575,8423415, 1298605,103600,4550,105,1,894930575,358764175, 59069010,5235405,271950,8330,140,1,42061737025, 17398082625,3016869625,289426830,16929255,621810, 14070,180,1]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)