49174

Appears in sequences

• Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly three solutions.at n=11A230635
• Number of (3+2) X (n+2) 0..3 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=33A252722
• G.f. A(x) satisfies A(x) = 1 + x*(1+x^2)^2*A(x)^2.at n=10A389871