169341

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 2 a([n/2]), where a(0) = 1, a(1) = 2, a(2) = 3.at n=21A298347
• Expansion of 1/(2 - Product_{k>=1} (1 + k*x^k)).at n=12A307063