248998

Appears in sequences

• a(n) is the total second area moment of all self-avoiding polygons of length 2n on the square lattice.at n=6A056631
• Smallest number k containing no zero digit such that k^2 contains exactly n zeros.at n=6A134846
• a(n) = smallest number with n+1 digits and without zero digits whose squares have the maximal number of zero digits = A135215(n+1).at n=4A135217
• Values of c such that p^2-c and p^2+c are both positive primes, for the special case when p^2-c = 3, or c = p^2-3, where p is a prime.at n=22A274610