45193

Appears in sequences

• Expansion of x/(1 - 5*x - 7*x^2).at n=7A015541
• Strong pseudoprimes to base 57.at n=26A020283
• Strong pseudoprimes to base 96.at n=22A020322
• G.f. A(x) satisfies: A(x) = A(x^2 - x^3)/x.at n=34A273218
• a(n) = Sum_{k=0..floor(2*n/5)} binomial(3*k,2*n-5*k).at n=19A392434