1000188

Appears in sequences

• Smallest nontrivial (not = 10^(n-1)) n-digit 7-smooth number. Or smallest n-digit number > 10^(n-1) with prime divisors < 10.at n=6A085867
• Number of n-tuples where each entry is chosen from the subsets of {1,2,3,4} such that the intersection of all n entries contains exactly one element.at n=5A128865
• a(n) = floor(1/{(1+n^4)^(1/4)}), where {} = fractional part.at n=62A184536
• Integer areas A of the integer-sided triangles such that the inradius and the radius of the three excircles are perfect squares.at n=12A233317
• Number of 3Xn 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order.at n=10A267668
• a(n) is the smallest n-digit number divisible by n^3.at n=6A337391