263180

Appears in sequences

• 1/4 the number of (n+1) X 5 binary arrays with all 2 X 2 subblock sums the same.at n=18A183981
• Positive numbers n such that the set of base-7 digits of n equals both the set of base-8 digits of n and the set of base-9 digits of n.at n=10A292125
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=17A318540