217069

Properties

Appears in sequences

• Increasing gaps between squarefree numbers (lower end).at n=7A020754
• Smallest prime p such that none of p+1, p+2, ..., p+n are squarefree.at n=7A257108
• Smallest prime p such that A005117(k+1) - A005117(k-1) = n, where p = A005117(k) for some k.at n=8A283807
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 305", based on the 5-celled von Neumann neighborhood.at n=34A287545
• Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=4A299724
• Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=3A299725
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=31A299728
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 1, 2, 3, 4, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=32A299728
• Prime numbersat n=19369