A217525 - OEIS

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A217525 as a simple table

`n`		`a(n)`
`0`		`0`
`1`		`0`
`2`		`0`
`3`		`0`
`4`		`0`
`5`		`2`
`6`		`4`
`7`		`6`
`8`		`15`
`9`		`31`
`10`		`67`
`11`		`155`
`12`		`343`
`13`		`787`
`14`		`1829`
`15`		`4233`
`16`		`9940`
`17`		`23454`
`18`		`55540`
`19`		`132390`
`20`		`316704`
`21`		`760462`
`22`		`1833050`
`23`		`4431552`
`24`		`10745282`
`25`		`26125316`
`26`		`63672044`
`27`		`155536070`
`28`		`380739734`
`29`		`933832952`
`30`		`2294581836`
`31`		`5647750518`
`32`		`13923153431`
`33`		`34375447863`
`34`		`84989987987`
`35`		`210407135915`
`36`		`521547749731`
`37`		`1294310608775`
`38`		`3215632551785`
`39`		`7997467696213`
`40`		`19910095233857`

[0,0,0,0,0,2,4,6,15,31,67,155,343,787,1829,4233, 9940,23454,55540,132390,316704,760462,1833050, 4431552,10745282,26125316,63672044,155536070, 380739734,933832952,2294581836,5647750518, 13923153431,34375447863,84989987987,210407135915, 521547749731,1294310608775,3215632551785, 7997467696213,19910095233857]

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Last modified April 23 02:23 EDT 2024. Contains 371906 sequences. (Running on oeis4.)