103372655

Appears in sequences

• Number of maximal collections of pairwise disjoint subsets {X,Y,Z} of {1, 2, ..., n} with X + Y = Z (as in A002849), with the property that n is in one of the subsets.at n=39A002848
• Number of maximal collections of pairwise disjoint subsets {X,Y,Z} of {1, 2, ..., n}, each satisfying X + Y = Z.at n=38A002849
• Number of partitions of {1,2,...,3n} into n triples (X,Y,Z) each satisfying X+Y=Z.at n=13A108235
• A condensed version of A108235.at n=7A284737