A221673 - OEIS

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A221673 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`5`
`3`		`27`
`4`		`139`
`5`		`715`
`6`		`3666`
`7`		`18787`
`8`		`96249`
`9`		`493063`
`10`		`2525780`
`11`		`12938520`
`12`		`66278434`
`13`		`339515341`
`14`		`1739187492`
`15`		`8909090065`
`16`		`45637335102`
`17`		`233779915777`
`18`		`1197551273093`
`19`		`6134526332322`
`20`		`31424469370357`
`21`		`160973679388600`
`22`		`824597072708976`

[1,5,27,139,715,3666,18787,96249,493063,2525780, 12938520,66278434,339515341,1739187492,8909090065, 45637335102,233779915777,1197551273093, 6134526332322,31424469370357,160973679388600, 824597072708976]

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Last modified April 25 06:49 EDT 2024. Contains 371964 sequences. (Running on oeis4.)