A213749 - OEIS

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A213749 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`9`
`3`		`46`
`4`		`180`
`5`		`603`
`6`		`1827`
`7`		`5164`
`8`		`13878`
`9`		`35905`
`10`		`90189`
`11`		`221274`
`12`		`532584`
`13`		`1261687`
`14`		`2949255`
`15`		`6815896`
`16`		`15597738`
`17`		`35389629`
`18`		`79691985`
`19`		`178258150`
`20`		`396361980`
`21`		`876609811`
`22`		`1929380139`
`23`		`4227858756`
`24`		`9227469150`
`25`		`20065550713`
`26`		`43486544277`
`27`		`93952410034`
`28`		`202400334288`

[1,9,46,180,603,1827,5164,13878,35905,90189, 221274,532584,1261687,2949255,6815896,15597738, 35389629,79691985,178258150,396361980,876609811, 1929380139,4227858756,9227469150,20065550713, 43486544277,93952410034,202400334288]

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Last modified June 1 08:45 EDT 2024. Contains 373015 sequences. (Running on oeis4.)