A027973 - OEIS

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A027973 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`4`
`2`		`9`
`3`		`21`
`4`		`46`
`5`		`99`
`6`		`209`
`7`		`436`
`8`		`901`
`9`		`1849`
`10`		`3774`
`11`		`7671`
`12`		`15541`
`13`		`31404`
`14`		`63329`
`15`		`127501`
`16`		`256366`
`17`		`514939`
`18`		`1033449`
`19`		`2072676`
`20`		`4154701`
`21`		`8324529`
`22`		`16673534`
`23`		`33386671`
`24`		`66837421`
`25`		`133778524`
`26`		`267724809`
`27`		`535721061`
`28`		`1071881326`
`29`		`2144473299`
`30`		`4290096449`
`31`		`8582053396`
`32`		`17167117141`

[1,4,9,21,46,99,209,436,901,1849,3774,7671,15541, 31404,63329,127501,256366,514939,1033449,2072676, 4154701,8324529,16673534,33386671,66837421, 133778524,267724809,535721061,1071881326, 2144473299,4290096449,8582053396,17167117141]

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Last modified May 16 23:54 EDT 2024. Contains 372555 sequences. (Running on oeis4.)