A004874 - OEIS

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A004874 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`2`
`4`		`3`
`5`		`4`
`6`		`5`
`7`		`6`
`8`		`7`
`9`		`8`
`10`		`9`
`11`		`10`
`12`		`11`
`13`		`12`
`14`		`128`
`15`		`129`
`16`		`130`
`17`		`131`
`18`		`132`
`19`		`133`
`20`		`134`
`21`		`135`
`22`		`136`
`23`		`137`
`24`		`138`
`25`		`139`
`26`		`256`
`27`		`257`
`28`		`258`
`29`		`259`
`30`		`260`
`31`		`261`
`32`		`262`
`33`		`263`
`34`		`264`
`35`		`265`
`36`		`266`
`37`		`384`
`38`		`385`
`39`		`386`
`40`		`387`
`41`		`388`
`42`		`389`
`43`		`390`
`44`		`391`
`45`		`392`
`46`		`393`
`47`		`512`
`48`		`513`
`49`		`514`
`50`		`515`
`51`		`516`
`52`		`517`
`53`		`518`
`54`		`519`
`55`		`520`
`56`		`640`
`57`		`641`

[0,1,2,3,4,5,6,7,8,9,10,11,12,128,129,130,131,132, 133,134,135,136,137,138,139,256,257,258,259,260, 261,262,263,264,265,266,384,385,386,387,388,389, 390,391,392,393,512,513,514,515,516,517,518,519, 520,640,641]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)