68966

Appears in sequences

• Expansion of (1+x)/(1-x-4*x^2).at n=12A026597
• a(n) = 4*a(n-2) - a(n-1), with a(0)=1, a(1)=-2.at n=12A122112
• Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 5 of its minimum.at n=11A263745