A055880 - OEIS

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A055880 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`13`
`3`		`69`
`4`		`347`
`5`		`1736`
`6`		`3993`
`7`		`41059`
`8`		`215842`
`9`		`498546`
`10`		`2202398`
`11`		`10866824`
`12`		`54261537`
`13`		`637482331`
`14`		`3370498978`
`15`		`7788765114`
`16`		`34411960682`
`17`		`169793870966`
`18`		`847836388608`
`19`		`4238615459929`
`20`		`49803023550277`
`21`		`263320090876701`
`22`		`1323752940946163`

[1,13,69,347,1736,3993,41059,215842,498546, 2202398,10866824,54261537,637482331,3370498978, 7788765114,34411960682,169793870966,847836388608, 4238615459929,49803023550277,263320090876701, 1323752940946163]

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)