-2736

Appears in sequences

• Coefficient of q^(2n) in the series expansion of Ramanujan's mock theta function f(q).at n=35A000039
• Expansion of (1-x)^(-1)/(1+x+2*x^3).at n=17A077906
• Values of z arising from representations of -n in A102535.at n=21A102809
• Determinants of 3 X 3 matrices of continuous blocks of 9 consecutive semiprimes.at n=32A118781
• Triangle read by rows: t(n,k)= k! + (1-k!)*(n - k)!, 0<=k<=n.at n=49A155454
• Triangle read by rows: t(n,k)= k! + (1-k!)*(n - k)!, 0<=k<=n.at n=50A155454
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 243", based on the 5-celled von Neumann neighborhood.at n=31A271003
• E.g.f. A(x) satisfies A(x) = exp( 1/(1 - x/A(x)) - 1 ).at n=7A361095