369495

Appears in sequences

• Denominator of b(n) = -Sum_{k=1..n} A037861(k)/((2*k)*(2*k+1)), where A037861(k) = (number of 0's) - (number of 1's) in the binary representation of k.at n=12A110626
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+577)^2 = y^2.at n=11A130005
• Triangle read by rows: Riordan array (1/(1-9x)^(2/3), x/(9x-1)).at n=40A283151