A011955 - OEIS

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A011955 as a simple table

`n`		`a(n)`
`2`		`1`
`3`		`2`
`4`		`4`
`5`		`9`
`6`		`19`
`7`		`40`
`8`		`80`
`9`		`165`
`10`		`330`
`11`		`672`
`12`		`1344`
`13`		`2709`
`14`		`5418`
`15`		`10878`
`16`		`21760`
`17`		`43605`
`18`		`87211`
`19`		`174592`
`20`		`349180`
`21`		`698707`
`22`		`1397418`
`23`		`2795520`
`24`		`5591040`
`25`		`11183436`
`26`		`22366890`
`27`		`44736512`
`28`		`89473020`
`29`		`178951509`
`30`		`357903000`
`31`		`715816960`
`32`		`1431633920`
`33`		`2863289683`
`34`		`5726579370`
`35`		`11453202383`
`36`		`22906404864`
`37`		`45812897109`
`38`		`91625794218`

[1,2,4,9,19,40,80,165,330,672,1344,2709,5418, 10878,21760,43605,87211,174592,349180,698707, 1397418,2795520,5591040,11183436,22366890, 44736512,89473020,178951509,357903000,715816960, 1431633920,2863289683,5726579370,11453202383, 22906404864,45812897109,91625794218]

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Last modified June 6 19:21 EDT 2024. Contains 373134 sequences. (Running on oeis4.)