A137990 - OEIS

(Translated by https://www.hiragana.jp/)
A137990 - OEIS

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A137990 as a simple table

`n`		`a(n)`
`0`		`2`
`1`		`7`
`2`		`19`
`3`		`109`
`4`		`163`
`5`		`487`
`6`		`1459`
`7`		`17497`
`8`		`52489`
`9`		`39367`
`10`		`472393`
`11`		`4960117`
`12`		`5314411`
`13`		`102036673`
`14`		`19131877`
`15`		`57395629`
`16`		`86093443`
`17`		`258280327`
`18`		`3874204891`
`19`		`23245229341`
`20`		`90656394427`
`21`		`585779779369`
`22`		`251048476873`
`23`		`9790890598009`
`24`		`4518872583697`

[2,7,19,109,163,487,1459,17497,52489,39367,472393, 4960117,5314411,102036673,19131877,57395629, 86093443,258280327,3874204891,23245229341, 90656394427,585779779369,251048476873, 9790890598009,4518872583697]

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Last modified September 16 11:09 EDT 2024. Contains 375965 sequences. (Running on oeis4.)