93424

Appears in sequences

• a(n) = n^4 - 6*n^3 + 12*n^2 - 4*n + 1.at n=19A027382
• Number of permutations sigma such that |sigma(i+j)-sigma(i)| >= 4 for 1 <= i <= n - j, 1 <= j <= 3.at n=19A322281