133311

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 2, 3, 7 and 8.at n=6A136982
• List of words over {1,3} with equal numbers of 1's and 3's.at n=17A214488
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=37A253495
• Number of (2+1) X (n+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=7A253496