195592

Appears in sequences

• a(n) = Sum_{k=floor((n+1)/2)..n} T(k,n-k); i.e., a(n) is the n-th diagonal sum of left-justified array T given by A026998.at n=29A027010
• G.f.: Product_{j>=1} Product_{i>=1} (1 + x^(i*j)).at n=36A107742