A301620 - OEIS

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A301620 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`0`
`3`		`2`
`4`		`4`
`5`		`18`
`6`		`42`
`7`		`156`
`8`		`398`
`9`		`1398`
`10`		`3778`
`11`		`12982`
`12`		`36522`
`13`		`124290`
`14`		`360182`
`15`		`1220440`
`16`		`3618090`
`17`		`12237698`
`18`		`36938158`
`19`		`124880222`
`20`		`382471606`
`21`		`1293363816`
`22`		`4009185912`
`23`		`13565790984`
`24`		`42478788432`
`25`		`143851766298`
`26`		`454339269482`
`27`		`1539997455570`
`28`		`4900091676662`
`29`		`16624834778474`
`30`		`53240459608298`

[0,0,2,4,18,42,156,398,1398,3778,12982,36522, 124290,360182,1220440,3618090,12237698,36938158, 124880222,382471606,1293363816,4009185912, 13565790984,42478788432,143851766298,454339269482, 1539997455570,4900091676662,16624834778474, 53240459608298]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)