A122737 - OEIS

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A122737 as a simple table

`n`		`a(n)`
`1`		`0`
`2`		`2`
`3`		`6`
`4`		`20`
`5`		`72`
`6`		`274`
`7`		`1086`
`8`		`4438`
`9`		`18570`
`10`		`79174`
`11`		`342738`
`12`		`1502472`
`13`		`6656436`
`14`		`29756910`
`15`		`134061570`
`16`		`608072340`
`17`		`2774495160`
`18`		`12726088630`
`19`		`58646299650`
`20`		`271401086380`
`21`		`1260750482760`
`22`		`5876782098790`
`23`		`27479558368170`
`24`		`128861594138750`
`25`		`605869334122602`
`26`		`2855527261156394`
`27`		`13488568550452446`

[0,2,6,20,72,274,1086,4438,18570,79174,342738, 1502472,6656436,29756910,134061570,608072340, 2774495160,12726088630,58646299650,271401086380, 1260750482760,5876782098790,27479558368170, 128861594138750,605869334122602,2855527261156394, 13488568550452446]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)