A221458 - OEIS

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A221458 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`2`
`4`		`7`
`5`		`25`
`6`		`102`
`7`		`456`
`8`		`2219`
`9`		`11639`
`10`		`65320`
`11`		`389533`
`12`		`2451393`
`13`		`16164044`
`14`		`110866328`
`15`		`785411383`
`16`		`5709898562`
`17`		`42358751505`
`18`		`319155928942`
`19`		`2433165471304`
`20`		`18714220718157`
`21`		`144885627697659`
`22`		`1127182676182780`
`23`		`8800901309557829`

[0,1,2,7,25,102,456,2219,11639,65320,389533, 2451393,16164044,110866328,785411383,5709898562, 42358751505,319155928942,2433165471304, 18714220718157,144885627697659,1127182676182780, 8800901309557829]

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Last modified September 1 16:01 EDT 2024. Contains 375591 sequences. (Running on oeis4.)