43757

Appears in sequences

• Euler characteristics of polytopes.at n=18A006482
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/2 of the elements are <= (n-1)/2.at n=18A047171
• Number of nonempty subsets of {1,2,...,n} in which exactly 1/2 of the elements are <= (n-2)/2.at n=17A047182
• Generalized Stirling numbers.at n=6A061690
• Triangle of generalized Stirling numbers.at n=23A061691
• a(n) = binomial(n+8,8) - 1.at n=10A165618
• a(n) = sum(binomial(n,k)*floor(sqrt(Bell(k))),k=0..n).at n=11A192576
• Number of permutations p of [n] such that p(i) > p(i+1) iff i == 0 (mod 10).at n=18A250287
• Number of minimal total dominating sets in the n-dipyramidal graph.at n=37A298823
• a(n) = binomial(2*n + 2, n + 2) - 1.at n=8A322938
• Irregular triangle read by rows: T(n,k) for k <= n/2 is the number of partitions of the repunit A002275(n) into k nonzero complementary binary vectors having a common divisor > 1 in base 10.at n=44A378761