450051

Appears in sequences

• Integers k whose binary expansion (D digits in length) is the same as the initial D digits of the binary expansion of the square root of k to the right of the binary point.at n=14A165309
• G.f.: exp( Sum_{n>=1} sigma(4n)*x^n/n ).at n=12A182820
• Numbers n such that A280864(n) = n.at n=36A280754