394499

Appears in sequences

• Expansion of 1/sqrt((1-x)^2 - 4*x^3).at n=18A098479
• a(1)=1. a(n) = the smallest integer > a(n-1) that is an (odd) palindrome when written in binary, and is such that (a(n)-a(n-1))/2 is prime.at n=22A161536