A001971 - OEIS

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A001971 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`3`
`6`		`5`
`7`		`6`
`8`		`8`
`9`		`10`
`10`		`13`
`11`		`15`
`12`		`18`
`13`		`21`
`14`		`25`
`15`		`28`
`16`		`32`
`17`		`36`
`18`		`41`
`19`		`45`
`20`		`50`
`21`		`55`
`22`		`61`
`23`		`66`
`24`		`72`
`25`		`78`
`26`		`85`
`27`		`91`
`28`		`98`
`29`		`105`
`30`		`113`
`31`		`120`
`32`		`128`
`33`		`136`
`34`		`145`
`35`		`153`
`36`		`162`
`37`		`171`
`38`		`181`
`39`		`190`
`40`		`200`
`41`		`210`
`42`		`221`
`43`		`231`
`44`		`242`
`45`		`253`
`46`		`265`
`47`		`276`
`48`		`288`
`49`		`300`
`50`		`313`
`51`		`325`
`52`		`338`
`53`		`351`
`54`		`365`
`55`		`378`
`56`		`392`
`57`		`406`
`58`		`421`
`59`		`435`
`60`		`450`

[0,0,1,1,2,3,5,6,8,10,13,15,18,21,25,28,32,36,41, 45,50,55,61,66,72,78,85,91,98,105,113,120,128,136, 145,153,162,171,181,190,200,210,221,231,242,253, 265,276,288,300,313,325,338,351,365,378,392,406, 421,435,450]

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Last modified April 25 11:06 EDT 2024. Contains 371967 sequences. (Running on oeis4.)