57792

Appears in sequences

• Number of lattice paths in plane starting at (0,0) and ending at (n,n) with steps from {(i,j): i+j > 0, i, j >= 0} that never go below the line y = x.at n=6A059435
• Numbers n such that phi(sigma(n)) = 5*phi(n).at n=11A067708
• Constant term in the reduction of the polynomial p(n,x) defined at A162517 and below in Comments.at n=9A192373
• Triangle read by rows: T(n,k) = Sum_{i <= n, j <= k, (i,j) <> (n,k)} T(i,j), starting with T(1,1) = 1, for n >= 1 and 1 <= k <= n.at n=27A192933
• Sum of the areas of the distinct rectangles (and the areas of the squares on their sides) with positive integer sides such that L + W = n, W < L.at n=42A294139
• Numbers m such that the denominator of m/rho(m) is 3, where rho is A206369; i.e. A294649(m) = 3.at n=13A297358