181931

Properties

Appears in sequences

• a(n) = position of the first occurrence of n in A245714.at n=39A245723
• Number of nX3 0..1 arrays with every element unequal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.at n=19A305042
• Prime numbersat n=16487