-665

Appears in sequences

• Almost certainly an erroneous version of A317209.at n=5A013568
• Carlitz-Riordan q-Catalan numbers (recurrence version) for q=-9.at n=3A015106
• Expansion of Product_{m>=1} (1+q^m)^(-5).at n=11A022600
• Expansion of Product_{m>=1} (1+m*q^m)^-19.at n=3A022711
• a(n) = 4^n - n^6.at n=3A024042
• a(n) = (n+1)*(2-n)/2.at n=37A080956
• Expansion of (1-2x)/(1-x^2+x^3).at n=23A117363
• T(n,k) an additive decomposition of the signed tangent number (triangle read by rows).at n=22A154342
• Numerator of Bernoulli(n, -5/9).at n=3A158966
• Numerators of coefficient array for minimal polynomials of sin(2*Pi/n). Rising powers of x.at n=122A181872
• Expansion of g.f. 1+x+(1+3*x+x^2)/(1+x)^3.at n=36A201163
• Exponential Riordan array [exp(x*exp(-x)),x].at n=29A215652
• Irregular array read by rows of numerators in which row n has one numerator from each irreducible cycle of n rational numbers under iteration by the 3x+1 function. (See Comments for selection and order of numerators.)at n=23A226605
• Irregular array read by rows of numerators in which row n has one numerator from each irreducible cycle of n rational numbers under iteration by the 3x+1 function. (See Comments for selection and order of numerators.)at n=42A226605
• Values of n such that L(18) and N(18) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=2A227521
• Coefficient table for the minimal polynomials of s(2*l+1)^2 = (2*sin(Pi/(2*l+1)))^2.at n=48A232632
• Coefficient table for minimal polynomials of s(n)^2 = (2*sin(Pi/n))^2.at n=76A232633
• G.f.: Sum_{n=-oo..+oo} x^n * (1 - x^n)^(3*n).at n=37A268298
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 197", based on the 5-celled von Neumann neighborhood.at n=15A270719
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 411", based on the 5-celled von Neumann neighborhood.at n=17A271892