-578

Appears in sequences

• Shifts left under Weigh transform.at n=27A038073
• McKay-Thompson series of class 10E for Monster.at n=65A058101
• Determinant of the n X n matrix whose element (i,j) equals t(|i-j|) where t(n) is the number of divisors of n and t(0) = 0.at n=6A071084
• a(1) = 1, a(2n) = a(2n-1) + c(n) and a(2n+1) = a(2n) - p(n), where c(n)=A002808(n) and p(n)=A000040(n) are the n-th composite and n-th prime numbers, respectively.at n=52A073891
• Triangle of coefficients of numerators of powers of e^2 in Sum_{k>=1} {1 / (1 + (k+1/2)^2*Pi^2)^n} + {4^n / (4+Pi^2)^n}.at n=16A085471
• a(n) = -n^2 - n + 72.at n=25A110678
• McKay-Thompson series of class 10E for the Monster group with a(0) = 1.at n=65A132980
• McKay-Thompson series of class 10E for the Monster group with a(0) = 2.at n=65A138516
• Numerator of Hermite(n, 6/19).at n=2A159644
• Expansion of Product_{k>=1} (1-x^(5*k))/(1-x^(2*k)).at n=45A262364
• G.f.: (1 - x/(1 - x^2/(1 - x^3/(1 - x^4/(1 - ...))))) / (1 + x/(1 + x^2/(1 + x^3/(1 + x^4/(1 + ...))))), a continued fraction.at n=26A285635
• Expansion of Product_{k>=1} 1/(1 + x^k)^(sigma_2(k)).at n=10A288422
• Interpret the values of the Moebius function mu(k) for k = n to 1 as a balanced ternary number.at n=6A292779
• Interpret the values of the Moebius function mu(k) for k = n to 1 as a balanced ternary number.at n=7A292779
• Interpret the values of the Moebius function mu(k) for k = n to 1 as a balanced ternary number.at n=8A292779
• G.f.: Product_{m>0} (1 - x^m + 2!*x^(2*m) - 3!*x^(3*m)).at n=47A293255
• G.f.: Sum_{n>=0} (x^(n+1) + i)^n / (1 + i*x^n)^(n+1), in which the constant term is taken to be 1.at n=24A323690
• a(n) = 1 + Sum_{k=2..n} (-1)^k * k * a(floor(n/k)).at n=52A361982
• a(n) = 1 + Sum_{k=2..n} (-1)^k * k * a(floor(n/k)).at n=53A361982
• Expansion of 1/(Sum_{k>=0} x^(k^3))^3.at n=18A363777