4063777

Appears in sequences

• Central element of a series of 7 successive nonsquarefree numbers.at n=12A188347
• Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally and vertically.at n=17A257207