A126120 - OEIS

A126120 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`0`
`2`		`1`
`3`		`0`
`4`		`2`
`5`		`0`
`6`		`5`
`7`		`0`
`8`		`14`
`9`		`0`
`10`		`42`
`11`		`0`
`12`		`132`
`13`		`0`
`14`		`429`
`15`		`0`
`16`		`1430`
`17`		`0`
`18`		`4862`
`19`		`0`
`20`		`16796`
`21`		`0`
`22`		`58786`
`23`		`0`
`24`		`208012`
`25`		`0`
`26`		`742900`
`27`		`0`
`28`		`2674440`
`29`		`0`
`30`		`9694845`
`31`		`0`
`32`		`35357670`
`33`		`0`
`34`		`129644790`
`35`		`0`
`36`		`477638700`
`37`		`0`
`38`		`1767263190`
`39`		`0`
`40`		`6564120420`
`41`		`0`
`42`		`24466267020`
`43`		`0`
`44`		`91482563640`
`45`		`0`
`46`		`343059613650`
`47`		`0`

[1,0,1,0,2,0,5,0,14,0,42,0,132,0,429,0,1430,0, 4862,0,16796,0,58786,0,208012,0,742900,0,2674440, 0,9694845,0,35357670,0,129644790,0,477638700,0, 1767263190,0,6564120420,0,24466267020,0, 91482563640,0,343059613650,0]