66958

Appears in sequences

• Numbers k such that k-th and (k+1)-st term of A038593 differ by 5.at n=25A038636
• Number of nX2 0..1 arrays with no 1 equal to more than three of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements.at n=9A283516
• a(n) = Sum_{k=1..n} k * sigma_3(k).at n=11A356126