A005639 - OEIS

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A005639 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`2`
`3`		`5`
`4`		`18`
`5`		`102`
`6`		`848`
`7`		`12452`
`8`		`265759`
`9`		`10454008`
`10`		`598047612`
`11`		`63620448978`
`12`		`9974635937844`
`13`		`2905660724913768`
`14`		`1268590412128132389`
`15`		`1023130650177394611897`
`16`		`1258149993547327488275562`
`17`		`2834863110716120144290954314`
`18`		`9900859865505110360978721901778`

[1,2,5,18,102,848,12452,265759,10454008,598047612, 63620448978,9974635937844,2905660724913768, 1268590412128132389,1023130650177394611897, 1258149993547327488275562, 2834863110716120144290954314, 9900859865505110360978721901778]

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Last modified April 25 06:14 EDT 2024. Contains 371964 sequences. (Running on oeis4.)