A221600 - OEIS

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A221600 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`19`
`3`		`140`
`4`		`1206`
`5`		`10020`
`6`		`84160`
`7`		`705156`
`8`		`5912277`
`9`		`49563492`
`10`		`415515336`
`11`		`3483440165`
`12`		`29203220338`
`13`		`244823382148`
`14`		`2052461910954`
`15`		`17206688780344`
`16`		`144251223226490`
`17`		`1209321306131007`
`18`		`10138271200549217`
`19`		`84993576475914931`
`20`		`712538449541938001`

[1,19,140,1206,10020,84160,705156,5912277, 49563492,415515336,3483440165,29203220338, 244823382148,2052461910954,17206688780344, 144251223226490,1209321306131007, 10138271200549217,84993576475914931, 712538449541938001]

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Last modified February 8 06:34 EST 2023. Contains 360134 sequences. (Running on oeis4.)