Number of partitions of {1,2,...,3n} into n triples (X,Y,Z) each satisfying X+Y=Z.

A108235

Number of partitions of {1,2,...,3n} into n triples (X,Y,Z) each satisfying X+Y=Z.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =0a(4) =8a(5) =21a(6) =0a(7) =0a(8) =3040a(9) =20505a(10) =0a(11) =0a(12) =10567748a(13) =103372655a(14) =0a(15) =0a(16) =142664107305a(18) =0a(19) =0

External references