A161731 - OEIS

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A161731 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`5`
`2`		`26`
`3`		`138`
`4`		`740`
`5`		`3988`
`6`		`21544`
`7`		`116520`
`8`		`630544`
`9`		`3413072`
`10`		`18476960`
`11`		`100032672`
`12`		`541583936`
`13`		`2932214080`
`14`		`15875537536`
`15`		`85953303168`
`16`		`465368899840`
`17`		`2519604954368`
`18`		`13641675037184`
`19`		`73858930936320`
`20`		`399887996969984`

[1,5,26,138,740,3988,21544,116520,630544,3413072, 18476960,100032672,541583936,2932214080, 15875537536,85953303168,465368899840, 2519604954368,13641675037184,73858930936320, 399887996969984]

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Last modified May 21 16:27 EDT 2024. Contains 372738 sequences. (Running on oeis4.)