-1175

Appears in sequences

• Generalized Stirling number triangle of first kind.at n=17A049458
• a(n) = (n+1)*(2-n)/2.at n=49A080956
• A Chebyshev transform of the Padovan-Jacobsthal numbers.at n=18A099492
• Numerator of Hermite(n, 1/28).at n=3A160184
• Expansion of g.f. 1+x+(1+3*x+x^2)/(1+x)^3.at n=48A201163
• Triangle of coefficients of Gaussian polynomials [2n+5,4]_q represented as finite sum of terms (1+q^2)^k*q^(g-k), where k = 0,1,...,g with g=4n+2.at n=97A267484
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 451", based on the 5-celled von Neumann neighborhood.at n=25A270844
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood.at n=17A271806
• Expansion of exp( Sum_{n>=1} -sigma(6*n)*x^n/n ) in powers of x.at n=28A283164
• Expansion of Product_{k>=0} (1-x^(4*k+1))^(4*k+1).at n=27A285070
• a(n) = a(n-2) - 2a(n-3) + a(n-4) for n>3, with a(0)=2, a(1)=0, a(2)=1, a(3)=-1, a sequence related to Pellian numbers.at n=17A292521
• a(n) = Sum_{k=0..floor(n/3)} (-1)^k * binomial(n,3*k)^2.at n=7A307158
• Expansion of Product_{k>0} 1/(Sum_{m>=0} x^(k*m^2)).at n=35A320119