41988

Appears in sequences

• Expansion of (1+3*x+9*x^2+12*x^3+11*x^4+3*x^5+x^6)/((1-x)^2*(1-x^2)^2*(1-x^3)).at n=22A055383
• Integers n such that 9*10^n + 11 is a prime number.at n=23A111023
• Numbers k such that phi(k-6) = phi(k) = phi(k+6).at n=36A217006