A048121 - OEIS

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A048121 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`1`
`4`		`3`
`5`		`12`
`6`		`42`
`7`		`156`
`8`		`570`
`9`		`2124`
`10`		`7926`
`11`		`29844`
`12`		`112812`
`13`		`428712`
`14`		`1635108`
`15`		`6259236`
`16`		`24031260`
`17`		`92517180`
`18`		`357019224`
`19`		`1380671532`
`20`		`5349496152`
`21`		`20762603724`
`22`		`80709201504`
`23`		`314178212928`
`24`		`1224576411084`
`25`		`4778651920092`
`26`		`18667769062044`

[0,0,1,3,12,42,156,570,2124,7926,29844,112812, 428712,1635108,6259236,24031260,92517180, 357019224,1380671532,5349496152,20762603724, 80709201504,314178212928,1224576411084, 4778651920092,18667769062044]

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Last modified September 15 15:25 EDT 2024. Contains 375938 sequences. (Running on oeis4.)