171526

Appears in sequences

• Number of self-dual signed graphs with n nodes. Also number of self-complementary 2-multigraphs on n nodes.at n=8A004104
• Number of partitions of n+10 with largest inscribed rectangle having area <= n.at n=39A218631
• Number of series-reduced locally stable rooted identity trees whose leaves form an integer partition of n.at n=15A316766
• a(n) = [x^n] exp(Sum_{k>=1} x^k*(1 + (n - 3)*x^k)/(k*(1 - x^k)^3)).at n=10A318118