A180256 - OEIS

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A180256 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`3`
`4`		`12`
`5`		`56`
`6`		`290`
`7`		`1626`
`8`		`9735`
`9`		`61709`
`10`		`411840`
`11`		`2882513`
`12`		`21095851`
`13`		`161056199`
`14`		`1280069731`
`15`		`10572507465`
`16`		`90590477793`
`17`		`804013429416`
`18`		`7380298477188`
`19`		`69968725915172`
`20`		`684193449404263`
`21`		`6892242071154495`
`22`		`71440857358236502`

[1,1,3,12,56,290,1626,9735,61709,411840,2882513, 21095851,161056199,1280069731,10572507465, 90590477793,804013429416,7380298477188, 69968725915172,684193449404263,6892242071154495, 71440857358236502]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)