304704

Appears in sequences

• Squares k such that digits of sqrt(k) are not present in k or k^(3/2).at n=13A029791
• Number of ways to place a non-attacking white and black rook on n X n chessboard.at n=23A035287
• T(n,k) = right- or upward-moving paths connecting opposite corners of an n X n chessboard, visiting the diagonal at k points between start and finish.at n=39A075435
• Square perimeters of primitive Pythagorean triangles.at n=20A120089
• Number of n X 8 binary arrays without the pattern 0 1 diagonally or antidiagonally.at n=9A188823
• Numbers with prime factorization p^2*q^2*r^6 where p, q, and r are distinct primes.at n=11A190469
• Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 1 1 1 vertically.at n=8A207691
• Coefficients in expansion of Eisenstein series -q*(d/dq)(q*(d/dq)E_2).at n=23A282154
• Squares whose arithmetic mean of digits is 3 (i.e., the sum of digits is 3 times the number of digits).at n=30A316483
• a(n) = (24*n)^2.at n=23A325475
• Squares whose sum of prime factors (with multiplicity) is also a perfect square.at n=34A392304