280930

Appears in sequences

• a(n) = 6*binomial(n,4) + 5*binomial(n,2) - 4*n + 5.at n=33A066455
• a(n) = Sum_{k=0..n} 3^(k-1)*Fibonacci(k).at n=9A099013
• Triangle read by rows: coefficient of x^n in the power series of x/(1 - m*x - x^2 + x^3 - x^5) in row n, column m=1..n+2.at n=43A117744