405606

Appears in sequences

• Number of binary strings of length n with equal numbers of 00001 and 10001 substrings.at n=20A164204
• Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,3,1,1,1 for x=0,1,2,3,4.at n=13A197618