A137388 - OEIS

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A137388 as a simple table

`n`		`a(n)`
`0`		`-1`
`1`		`-1`
`2`		`0`
`3`		`-1`
`4`		`0`
`5`		`6`
`6`		`-1`
`7`		`0`
`8`		`15`
`9`		`20`
`10`		`-1`
`11`		`0`
`12`		`27`
`13`		`64`
`14`		`45`
`15`		`-1`
`16`		`0`
`17`		`42`
`18`		`140`
`19`		`175`
`20`		`84`
`21`		`-1`
`22`		`0`
`23`		`60`
`24`		`256`
`25`		`450`
`26`		`384`
`27`		`140`
`28`		`-1`
`29`		`0`
`30`		`81`
`31`		`420`
`32`		`945`
`33`		`1134`
`34`		`735`
`35`		`216`
`36`		`-1`
`37`		`0`
`38`		`105`
`39`		`640`
`40`		`1750`
`41`		`2688`
`42`		`2450`
`43`		`1280`
`44`		`315`
`45`		`-1`
`46`		`0`
`47`		`132`
`48`		`924`
`49`		`2970`
`50`		`5544`
`51`		`6468`
`52`		`4752`
`53`		`2079`
`54`		`440`
`55`		`-1`
`56`		`0`
`57`		`162`
`58`		`1280`
`59`		`4725`
`60`		`10368`
`61`		`14700`
`62`		`13824`
`63`		`8505`
`64`		`3200`
`65`		`594`

[-1,-1,0,-1,0,6,-1,0,15,20,-1,0,27,64,45,-1,0,42, 140,175,84,-1,0,60,256,450,384,140,-1,0,81,420, 945,1134,735,216,-1,0,105,640,1750,2688,2450,1280, 315,-1,0,132,924,2970,5544,6468,4752,2079,440,-1, 0,162,1280,4725,10368,14700,13824,8505,3200,594]

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Last modified April 23 13:41 EDT 2024. Contains 371914 sequences. (Running on oeis4.)