A049155 - OEIS

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A049155 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`3`
`3`		`11`
`4`		`45`
`5`		`195`
`6`		`887`
`7`		`4171`
`8`		`20113`
`9`		`98913`
`10`		`494211`
`11`		`2501643`
`12`		`12801697`
`13`		`66118683`
`14`		`344216175`
`15`		`1804412607`
`16`		`9516313329`
`17`		`50457415057`
`18`		`268812773283`
`19`		`1438230290611`
`20`		`7724625806901`
`21`		`41633190509539`
`22`		`225101873722055`

[1,1,3,11,45,195,887,4171,20113,98913,494211, 2501643,12801697,66118683,344216175,1804412607, 9516313329,50457415057,268812773283,1438230290611, 7724625806901,41633190509539,225101873722055]

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Last modified December 7 23:30 EST 2023. Contains 367662 sequences. (Running on oeis4.)