99949

Appears in sequences

• Near-repdigit semiprimes with 9 as repeated digit.at n=40A105990
• 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, 1), (0, 1, -1), (1, 0, 0), (1, 0, 1), (1, 1, -1)}.at n=9A150170
• Semiprimes that contain only digits 4 and 9.at n=16A368337