27245

Appears in sequences

• Numbers m such that [A070080(m), A070081(m), A070082(m)] is a right integer triangle.at n=30A070136
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 1), (0, 1, -1), (0, 1, 0), (1, 0, 1)}.at n=8A150278
• Number of length 3+3 0..n arrays with some disjoint pairs in every consecutive four terms having the same sum.at n=13A247535
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to either SmallGroup(2187,247)-#1;5 or SmallGroup(2187,247)-#1;9.at n=5A250242
• a(n) = A007678(2*n)/(2*n).at n=44A341734