148401

Appears in sequences

• a(n) = a(n-1) + a(n-2) + a(n-3) with a(1) = 2, a(2) = 3, a(3) = 4.at n=19A145027
• Expansion of Product_{k>=1} (1 + x^k)^(4^(k-1)).at n=9A343361