4413897

Appears in sequences

• a(n) = A000785(n) - A005575(n-1).at n=32A259096
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1) + b(n-2) + 2, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=27A294554