178956963

Appears in sequences

• a(n) = 3*a(n-1) - 3*a(n-2) + 2*a(n-3), with a(0) = 2, a(1) = -3, a(2) = 3.at n=26A135353
• Numerator of sum(i=1..n, 3*i/4^i ).at n=13A215712