285720

Appears in sequences

• The difference between the two largest distinct parts of a partition (0 if no distinct parts), summed over all partitions of n.at n=41A268191
• a(n) = [x^n] 2/(3*sqrt(4*x^2 + 1) + 6*x - 1). Alternating row sums of A375025.at n=26A375026