44739229

Appears in sequences

• Expansion of 1/((1-x)*(1-2*x)*(1-x^2)).at n=24A011377
• Generalized Jacobsthal numbers.at n=26A083579
• a(n) = 2*(4^n - 1)/3 - n.at n=12A144414
• Partial sums of floor(2^n/3).at n=25A178420
• Define Z(1) = {1}, and Z(n+1) = Z(n) (+) { x+y, with x and y in Z(n) } for any n>0 (where (+) stands for the symmetric difference of two sets). Then a(n) gives the number of elements in Z(n).at n=26A263402