214272

Appears in sequences

• Number of subsets of integers 1 through n (including the empty set) containing no pair of integers that share a common factor.at n=40A084422
• Sigma(A033631(n)) {sigma is the sum of divisors function A000203}.at n=24A115619
• Number of subsets of {1, 2, ..., n} containing n and having pairwise coprime elements; also row sums of A186972.at n=40A186973
• (n-1)-st elementary symmetric function of the first n terms of (1,2,3,4,1,2,3,4,1,2,3,4,...) = A010883.at n=13A203163
• Sum of the asymmetry degrees of all 00-avoiding binary words of length n.at n=22A275436
• Sum of the asymmetry degrees of all compositions of n into odd parts.at n=25A275441