34666

Appears in sequences

• Numbers k such that 195*2^k+1 is prime.at n=30A032474
• G.f. A(x) satisfies: A(x) = 1 + x*A(x)/(1 - x*A(x) - 2*x^2*A(x)^2).at n=9A307413
• O.g.f. A(x) satisfies: 0 = Sum_{n>=1} (b(n) - A(x))^n * (2*x)^n / n, where b(n) = 1 if n is odd or b(n) = 2 if n is even.at n=9A326564
• a(n) = (3*n^4 - 4*n^3 + n^2 + 4*n + 4)/4.at n=15A366478
• G.f. A(x) satisfies A(x) = 1 / ((1 + x) * (1 - x * (1 + x + x^2) * A(x^3))).at n=18A367717