28901376

Appears in sequences

• Lesser of a primitive pair such that n and its 10's complement are simultaneously square.at n=5A068075
• Numbers n such that n and its 10's complement are both squares, i.e., n and 10^k - n (where k is the number of digits in n) are squares.at n=29A068810
• G.f. satisfies: A(x) = exp( Sum_{n>=1} [Sum_{k=0..2*n} A200536(n,k)^2 * x^k] / A(x)^n * x^n/n ), where A200536(n,k) is the coefficient of x^k in (1+3*x+2*x^2)^n.at n=35A200537
• Squares which have one or more occurrences of exactly eight different digits.at n=25A235723