49751
domain: N
Appears in sequences
- Numbers k such that 5*phi(k) = 4*sigma(k).at n=4A065822
- Number of unlabeled rooted trees with n nodes in which all outdegrees are either 0, 1, or 3.at n=19A298204
- Starting with 1,2,3,4,5,6: a(n) is the next smallest number greater than a(n-1) such that a[i] + a[j] + a[k] != a[x] + a[y] + a[z] for 1 <= i,j,k,x,y,z <= n all distinct.at n=32A317778
- Irregular triangle read by rows: T(n,k) (0 <= k <= n^2) are coefficients of exact spanning probability for site percolation along the second dimension for an n X n 2D triangular lattice with periodic boundary conditions.at n=42A366465