A081580 - OEIS

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A081580 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`7`
`5`		`1`
`6`		`1`
`7`		`13`
`8`		`13`
`9`		`1`
`10`		`1`
`11`		`19`
`12`		`61`
`13`		`19`
`14`		`1`
`15`		`1`
`16`		`25`
`17`		`145`
`18`		`145`
`19`		`25`
`20`		`1`
`21`		`1`
`22`		`31`
`23`		`265`
`24`		`595`
`25`		`265`
`26`		`31`
`27`		`1`
`28`		`1`
`29`		`37`
`30`		`421`
`31`		`1585`
`32`		`1585`
`33`		`421`
`34`		`37`
`35`		`1`
`36`		`1`
`37`		`43`
`38`		`613`
`39`		`3331`
`40`		`6145`
`41`		`3331`
`42`		`613`
`43`		`43`
`44`		`1`
`45`		`1`
`46`		`49`
`47`		`841`
`48`		`6049`
`49`		`17401`
`50`		`17401`
`51`		`6049`
`52`		`841`
`53`		`49`
`54`		`1`
`55`		`1`
`56`		`55`
`57`		`1105`
`58`		`9955`
`59`		`40105`
`60`		`65527`
`61`		`40105`
`62`		`9955`
`63`		`1105`
`64`		`55`
`65`		`1`

[1,1,1,1,7,1,1,13,13,1,1,19,61,19,1,1,25,145,145, 25,1,1,31,265,595,265,31,1,1,37,421,1585,1585,421, 37,1,1,43,613,3331,6145,3331,613,43,1,1,49,841, 6049,17401,17401,6049,841,49,1,1,55,1105,9955, 40105,65527,40105,9955,1105,55,1]

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Last modified June 5 12:10 EDT 2024. Contains 373105 sequences. (Running on oeis4.)