86250
domain: N
Appears in sequences
- Numbers sigma(k) when Sum_(j=1..k) sigma(j) / sigma(k) is an integer.at n=5A168129
- Number of permutations (p(1), p(2), ..., p(n)) satisfying -k <= p(i)-i <= r and p(i)-i not in the set I, i=1..n, with k=2, r=6, I={-1,1,2,3,4,5}.at n=39A224808
- Triangle with first column identical to 1 and the other entries defined by the sum of entries above and to the left.at n=43A226392
- The hyper-Wiener index of the Cartesian product of the cycles C(n) and C(n) (a Torus Grid Graph).at n=9A228316
- Number of n X 2 0..1 arrays with each 1 adjacent to 1, 2 or 3 king-move neighboring 1s.at n=8A296682
- T(n,k)=Number of nXk 0..1 arrays with each 1 adjacent to 1, 2 or 3 king-move neighboring 1s.at n=46A296688
- Triangle read by rows: T(n,k) is the number of labeled point-determining graphs with n nodes and k edges, n >= 0, 0 <= k <= n*(n - 1)/2.at n=56A369283