222961

Appears in sequences

• Least exponent k such that 3^k has exactly n consecutive 4's in its decimal representation.at n=9A131549
• Number of nXn 0..1 arrays with every element unequal to 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=6A305446
• Number of nX7 0..1 arrays with every element unequal to 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=6A305451