A145877 - OEIS

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A145877 as a simple table

`n`		`a(n)`
`1`		`1`
`2`		`1`
`3`		`1`
`4`		`4`
`5`		`0`
`6`		`2`
`7`		`15`
`8`		`3`
`9`		`0`
`10`		`6`
`11`		`76`
`12`		`20`
`13`		`0`
`14`		`0`
`15`		`24`
`16`		`455`
`17`		`105`
`18`		`40`
`19`		`0`
`20`		`0`
`21`		`120`
`22`		`3186`
`23`		`714`
`24`		`420`
`25`		`0`
`26`		`0`
`27`		`0`
`28`		`720`
`29`		`25487`
`30`		`5845`
`31`		`2688`
`32`		`1260`
`33`		`0`
`34`		`0`
`35`		`0`
`36`		`5040`
`37`		`229384`
`38`		`52632`
`39`		`22400`
`40`		`18144`
`41`		`0`
`42`		`0`
`43`		`0`
`44`		`0`
`45`		`40320`
`46`		`2293839`
`47`		`525105`
`48`		`223200`
`49`		`151200`
`50`		`72576`
`51`		`0`
`52`		`0`
`53`		`0`
`54`		`0`
`55`		`362880`
`56`		`25232230`

[1,1,1,4,0,2,15,3,0,6,76,20,0,0,24,455,105,40,0,0, 120,3186,714,420,0,0,0,720,25487,5845,2688,1260,0, 0,0,5040,229384,52632,22400,18144,0,0,0,0,40320, 2293839,525105,223200,151200,72576,0,0,0,0,362880, 25232230]

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Last modified July 2 18:50 EDT 2024. Contains 373960 sequences. (Running on oeis4.)