66216

Appears in sequences

• a(n) = n*(14*n^2 - 21*n + 13)/6.at n=31A071229
• Number of permutations of length n which avoid the patterns 132, 3421, 4231.at n=16A116725
• Consider the base-5 Kaprekar map n->K(n) defined in A165032. Sequence gives numbers belonging to cycles, including fixed points.at n=16A165037
• Consider the base-5 Kaprekar map n->K(n) defined in A165032. Sequence gives numbers belonging to cycles of length greater than 1.at n=13A165039
• Number of (n+2)X(4+2) 0..3 arrays with every 3X3 subblock row and column sum unequal to 4 or 5 and every diagonal and antidiagonal sum equal to 4 or 5.at n=7A251901
• a(n) = Sum_{k=0..floor(n/3)} (n-3*k)^k.at n=23A352946
• E.g.f. A(x) satisfies A(x) = exp(x*A(x) + x^4*A'''(x)).at n=5A385921