-327

Appears in sequences

• Imaginary Rabbits: imaginary part of a(0)=i; a(1)=-i; a(n) = a(n-1) + i*a(n-2), with i = sqrt(-1).at n=19A014291
• Inverse Euler transform of {1, primes}.at n=39A030011
• Coefficients of the '6th-order' mock theta function phi(q).at n=49A053268
• McKay-Thompson series of class 12G for Monster.at n=20A058485
• McKay-Thompson series of class 30A for Monster.at n=41A058612
• Determinant of the n X n matrix whose element (i,j) equals the |i-j|-th prime or if i=j, 1.at n=8A071078
• Series expansion of (-3 - 2*x)/(1 + x - x^3) in powers of x.at n=39A078712
• a(n+3) = 6*a(n) - 5*a(n+2), a(0) = -1, a(1) = 3, a(2) = -15.at n=4A110211
• Expansion of 1/(sqrt(1+4x^2)+x(1-x)).at n=16A111964
• Expansion of (1 - 3x)/(1 - x + 2x^2 - x^3).at n=19A119303
• G.f.: (1+x+x^2-sqrt(1+2x+3x^2-2x^3+x^4))/2.at n=16A129509
• Expansion of q^(-1/3) * (eta(q) * eta(q^9))^2 / eta(q^3)^4 in powers of q.at n=16A192329
• McKay-Thompson series of class 30A for the Monster group with a(0) = -3.at n=41A205826
• a(n) = 3*a(n-2) - a(n-3) with a(0)=0, a(1)=3, a(2)=0.at n=10A214699
• Expansion of phi(x)^2 / psi(x) in powers of x where phi(), psi() are Ramanujan theta functions.at n=55A260313
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 97", based on the 5-celled von Neumann neighborhood.at n=11A270155
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 353", based on the 5-celled von Neumann neighborhood.at n=11A271308
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 393", based on the 5-celled von Neumann neighborhood.at n=11A271605
• Floor(r*a(n-1)) - floor(r*a(n-2)), where r = 3/2, a(0) = 1, a(1) = 1.at n=31A275865
• Expansion of e.g.f. exp(cos(tanh(x))-1) (even powers only).at n=3A298245