408760

Appears in sequences

• Alkane (or paraffin) numbers l(12,n).at n=14A018213
• Number of distinct solutions of Sum_{i=1..6}(x(2i-1)*x(2i)) = 0 (mod n), with x() only in 2..n-2.at n=10A180818
• E.g.f. A(x) satisfies: A'(x) = A(x) - A(x)^2 + A(x)^3.at n=8A229559
• Maximum over 0 <= k <= n/2 of the number of permutations of two symbols occurring k and n-2*k times, respectively, where a permutation and its reversal are counted only once.at n=32A362260