A241530 - OEIS

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A241530 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`2`
`2`		`4`
`3`		`12`
`4`		`36`
`5`		`120`
`6`		`400`
`7`		`1400`
`8`		`4900`
`9`		`17640`
`10`		`63504`
`11`		`232848`
`12`		`853776`
`13`		`3171168`
`14`		`11778624`
`15`		`44169840`
`16`		`165636900`
`17`		`625739400`
`18`		`2363904400`
`19`		`8982836720`
`20`		`34134779536`
`21`		`130332794592`
`22`		`497634306624`
`23`		`1907598175392`
`24`		`7312459672336`
`25`		`28124844893600`
`26`		`108172480360000`

[1,2,4,12,36,120,400,1400,4900,17640,63504,232848, 853776,3171168,11778624,44169840,165636900, 625739400,2363904400,8982836720,34134779536, 130332794592,497634306624,1907598175392, 7312459672336,28124844893600,108172480360000]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)