16702191

Appears in sequences

• a(0)=0, a(1)=1, a(2)=2; for n > 2, a(n) = 3*a(n-1) - a(n-2) - 2*a(n-3).at n=24A027934
• Number of compositions of n with at least 1 odd and 1 even part.at n=24A097895