A157539 - OEIS

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A157539 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`9`
`4`		`54`
`5`		`430`
`6`		`5265`
`7`		`51471`
`8`		`471996`
`9`		`4601556`
`10`		`43269345`
`11`		`363940555`
`12`		`2806131702`
`13`		`20371562718`
`14`		`141703205917`
`15`		`953199973950`
`16`		`6225689789880`
`17`		`39490548010664`
`18`		`242779946083425`
`19`		`1445870078850825`
`20`		`8356848826556090`
`21`		`46996171775421630`

[1,9,54,430,5265,51471,471996,4601556,43269345, 363940555,2806131702,20371562718,141703205917, 953199973950,6225689789880,39490548010664, 242779946083425,1445870078850825,8356848826556090, 46996171775421630]

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Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)