28275

Appears in sequences

• Numbers that define integer Heronian triangles [prime(a(n)), prime(a(n)+1), A068965(n)] with area A068966(n).at n=25A068964
• Numbers m that are the hypotenuse of exactly 22 distinct integer-sided right triangles, i.e., m^2 can be written as a sum of two squares in 22 ways.at n=23A097103
• Number of rooted binary MUL-trees with n leaves on the label set [5].at n=5A220818
• Numbers m having greatest prime power divisor d such that d is smaller than the difference between m and the largest prime smaller than m and d is smaller than the difference between m and twice the largest prime smaller than m/2.at n=9A290290
• Array read by antidiagonals: T(n,k) is the number of binary rooted trees with n leaves of k colors and all non-leaf nodes having out-degree 2.at n=50A319539
• Number of nodes in graph BC(n,2) when the internal nodes are counted with multiplicity.at n=16A343994