327967

Properties

Appears in sequences

• G.f.: (1-2*x^2)/(1-x-2*x^2-x^3).at n=18A108122
• a(n)= +a(n-3) +2*a(n-6) +a(n-9).at n=50A109531
• Number of binary strings of length n with no substrings equal to 000, 001, or 010.at n=32A164316
• Prime numbersat n=28248