43510

Appears in sequences

• Number of nonempty subsets of {1,2,...,n} in which exactly 2/3 of the elements are <= (n-1)/3.at n=26A048007
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/3 of the elements are <= (n-2)/3.at n=26A048018
• Number of nonempty subsets of {1,2,...,n} in which exactly 2/3 of the elements are <= (n-3)/3.at n=26A048029
• a(n) is the smallest number not already used such that a(n)*a(n-1)*a(n-2) + 1 is a square, with a(1)=1 and a(2)=2.at n=24A064691
• Number of (w,x,y,z) with all terms in {0,...,n} and (least gapsize)=1.at n=20A212894