421901

Appears in sequences

• Composite numbers which in base 6 contain their largest proper factor as a substring.at n=28A063156
• 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), (-1, 0, 0), (0, 1, -1), (1, 0, 0), (1, 1, 0)}.at n=10A150323
• Number of (n+1) X (2+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0011 or 0111.at n=9A259244