666434

Appears in sequences

• Number of (w,x,y,z) with all terms in {0,...,n} and even range.at n=33A212889
• Solutions x to the negative Pell equation y^2 = 72*x^2 - 83232 with x,y >= 0.at n=18A281239
• Number of 3 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1's.at n=8A297764