A147980 - OEIS

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A147980 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`0`
`3`		`2`
`4`		`0`
`5`		`4`
`6`		`4`
`7`		`8`
`8`		`12`
`9`		`28`
`10`		`44`
`11`		`84`
`12`		`156`
`13`		`288`
`14`		`540`
`15`		`1020`
`16`		`1904`
`17`		`3616`
`18`		`6860`
`19`		`13024`
`20`		`24836`
`21`		`47448`
`22`		`90772`
`23`		`174072`
`24`		`334348`
`25`		`643112`
`26`		`1238928`
`27`		`2389956`
`28`		`4615916`
`29`		`8925808`
`30`		`17278680`
`31`		`33482196`
`32`		`64944060`
`33`		`126083448`
`34`		`244989096`
`35`		`476416560`
`36`		`927167752`
`37`		`1805691728`
`38`		`3519062820`

[1,0,2,0,4,4,8,12,28,44,84,156,288,540,1020,1904, 3616,6860,13024,24836,47448,90772,174072,334348, 643112,1238928,2389956,4615916,8925808,17278680, 33482196,64944060,126083448,244989096,476416560, 927167752,1805691728,3519062820]

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Last modified April 24 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)