1737338

Appears in sequences

• Number of squares (of nonnegative integers) that require n binary (base-2) digits.at n=45A126726
• a(n) is the ceiling of 2^n * (sqrt(2)-1), i.e., a(n)-1 is the number whose binary representation gives the first n bits of sqrt(2)-1.at n=21A136322
• Number of triangular numbers T(k) between powers of 2, 2^(n-1) < T(k) <= 2^n.at n=44A190660