90384

Appears in sequences

• Number of strongly asymmetric sequences of length n.at n=12A002842
• Expansion of 1/((1-2x)(1-4x)(1-8x)(1-12x)).at n=4A025979
• E.g.f. satisfies: A(x) = 1 + x*exp(2*Integral A(x) dx).at n=7A143920
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/2)} binomial(n,2*k+1) * a(k) * a(n-2*k-1).at n=8A352435
• Number of n-node tournaments that have exactly five circular triads.at n=2A357266