A026974 - OEIS

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A026974 as a simple table

`n`		`a(n)`
`3`		`1`
`4`		`12`
`5`		`77`
`6`		`450`
`7`		`2154`
`8`		`11592`
`9`		`51060`
`10`		`261720`
`11`		`1106790`
`12`		`5562216`
`13`		`23051943`
`14`		`114491286`
`15`		`468950860`
`16`		`2313509520`
`17`		`9409147640`
`18`		`46221336720`
`19`		`187136146566`
`20`		`916762621320`
`21`		`3700703183930`
`22`		`18096198791748`
`23`		`72903667955404`
`24`		`356052268340208`
`25`		`1432473805470840`
`26`		`6990085402419600`
`27`		`28096469154731484`

[1,12,77,450,2154,11592,51060,261720,1106790, 5562216,23051943,114491286,468950860,2313509520, 9409147640,46221336720,187136146566,916762621320, 3700703183930,18096198791748,72903667955404, 356052268340208,1432473805470840,6990085402419600, 28096469154731484]

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Last modified April 19 08:28 EDT 2024. Contains 371782 sequences. (Running on oeis4.)