22369608

Appears in sequences

• Expansion of 1/((1-x)*(1-2*x)*(1-x^2)).at n=23A011377
• a(n) = 4a(n-1) + 3n with a(0) = 0.at n=12A078904
• Partial sums of floor(2^n/3).at n=24A178420