250472

Appears in sequences

• A014486-encodings of trivalent plane trees (tpt) represented as (embedded into) a subset of general plane trees.at n=19A083936
• Number of 6 X 6 arrays of squares of integers, symmetric about main diagonal, with all rows summing to n.at n=25A156388
• Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 25.at n=5A156482