46922

Appears in sequences

• a(1) = 2; a(n) = a(n-1)-th even nontotient number.at n=6A072415
• G.f. A(x) satisfies: 1/(1-x) = Sum_{n>=0} x^n * (1+x)^(n^2) / A(x)^(n*(n+1)/2).at n=13A325578