181580

Appears in sequences

• The smallest number k such that k*2^n mod 3^n = 1.at n=12A283754
• a(n) = [x^n] 1 + x*(1 + 2*x*(1 + 3*x*(1 + 4*x*(1 + 5*x*(1 + ...)^n)^n)^n)^n)^n.at n=5A302657