11538801

Appears in sequences

• Expansion of g.f. (x^2+x+1)*(2*x^2+2*x+1)*(x-1)^2/((1-x^2-2*x^3)*(x^4+1)).at n=42A107850
• Numbers k such that gcd(k^2, 2^(k-1) - 1) > k.at n=14A331021