A149877 - OEIS

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A149877 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`5`
`3`		`14`
`4`		`42`
`5`		`140`
`6`		`480`
`7`		`1694`
`8`		`6160`
`9`		`22768`
`10`		`86119`
`11`		`329819`
`12`		`1276827`
`13`		`5009624`
`14`		`19807663`
`15`		`79034687`
`16`		`317771172`
`17`		`1284909978`
`18`		`5231953571`
`19`		`21409625876`
`20`		`88032238475`
`21`		`363768052841`
`22`		`1508700015910`
`23`		`6282877542186`
`24`		`26257507524764`
`25`		`110071406730840`
`26`		`462949380985458`
`27`		`1952358638292573`
`28`		`8255507414702459`

[1,2,5,14,42,140,480,1694,6160,22768,86119,329819, 1276827,5009624,19807663,79034687,317771172, 1284909978,5231953571,21409625876,88032238475, 363768052841,1508700015910,6282877542186, 26257507524764,110071406730840,462949380985458, 1952358638292573,8255507414702459]

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Last modified May 29 04:26 EDT 2024. Contains 372921 sequences. (Running on oeis4.)