73210

Appears in sequences

• Number of distinct solutions of sum{i=1..3}(x(2i-1)*x(2i)) = 1 (mod n), with x() only in 2..n-2.at n=23A180826
• Main diagonal of square arrays A114881 and A249741.at n=40A249743
• Number of (6+1) X (n+1) 0..1 arrays with every 2 X 2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=20A258559
• a(n) is the largest integer with distinct digits whose digital sum is n.at n=13A381645