A181665 - OEIS

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A181665 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`2`
`3`		`6`
`4`		`17`
`5`		`51`
`6`		`161`
`7`		`519`
`8`		`1707`
`9`		`5711`
`10`		`19358`
`11`		`66342`
`12`		`229505`
`13`		`800333`
`14`		`2810370`
`15`		`9928806`
`16`		`35266403`
`17`		`125863071`
`18`		`451119566`
`19`		`1623142622`
`20`		`5860507205`
`21`		`21227095355`
`22`		`77108788287`
`23`		`280847802645`
`24`		`1025416658863`
`25`		`3752414144071`
`26`		`13760368353098`

[1,1,2,6,17,51,161,519,1707,5711,19358,66342, 229505,800333,2810370,9928806,35266403,125863071, 451119566,1623142622,5860507205,21227095355, 77108788287,280847802645,1025416658863, 3752414144071,13760368353098]

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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)