31374953

Properties

Appears in sequences

• Expansion of e.g.f.: (1-x)/(2-exp(x)).at n=10A053525
• a(n) is the number of time-dependent assembly trees satisfying the connected gluing rule for a cycle on n vertices.at n=9A317057
• Triangle read by rows. T(n,k) is the number of labeled threshold graphs on n vertices with k components, for 1 <= k <= n.at n=45A348436
• Prime numbersat n=1937651