A268740 - OEIS

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A268740 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`1`
`3`		`1`
`4`		`2`
`5`		`4`
`6`		`2`
`7`		`5`
`8`		`15`
`9`		`15`
`10`		`5`
`11`		`10`
`12`		`48`
`13`		`80`
`14`		`48`
`15`		`10`
`16`		`20`
`17`		`145`
`18`		`396`
`19`		`396`
`20`		`145`
`21`		`20`
`22`		`38`
`23`		`420`
`24`		`1788`
`25`		`2876`
`26`		`1788`
`27`		`420`
`28`		`38`
`29`		`71`
`30`		`1183`
`31`		`7831`
`32`		`19591`
`33`		`19591`
`34`		`7831`
`35`		`1183`
`36`		`71`
`37`		`130`
`38`		`3264`
`39`		`33170`
`40`		`128232`
`41`		`200204`
`42`		`128232`
`43`		`33170`
`44`		`3264`
`45`		`130`
`46`		`235`
`47`		`8865`
`48`		`137868`
`49`		`816009`
`50`		`1971414`

[0,1,1,2,4,2,5,15,15,5,10,48,80,48,10,20,145,396, 396,145,20,38,420,1788,2876,1788,420,38,71,1183, 7831,19591,19591,7831,1183,71,130,3264,33170, 128232,200204,128232,33170,3264,130,235,8865, 137868,816009,1971414]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)