1628125

Appears in sequences

• Row sums of convolution triangle A030523.at n=11A039717
• Expansion of (1+x)*(1+2*x)*(1-x)/(1-5*x^2+5*x^4).at n=22A217777
• a(n) = Sum_{k >= 0}(-1)^k*binomial(n,5*k+1).at n=24A289321
• a(n) = Sum_{k>=0} (-1)^k*binomial(n,5*k+3).at n=24A289388