28119

Appears in sequences

• McKay-Thompson series of class 7A for Monster.at n=8A007264
• McKay-Thompson series of class 7A for the Monster group with a(0) = 10.at n=8A030183
• McKay-Thompson series of class 7A for the Monster group with a(0) = 3.at n=8A045489
• When expressed in base 3 and then interpreted in base 4, is a multiple of the original number.at n=17A062853
• Numbers k such that sopf(k) = 2*sopf(k+1), where sopf(k) = A008472.at n=28A064112
• a(1) = 1 then the least multiple of odd numbers not odd multiples of 5, (3,7,9,11,13,17,19,21,23,27,29,...) such that every partial concatenation is noncomposite.at n=36A110433
• G.f. satisfies: A(x) = exp( Sum_{n>=1} x^n/n * Product_{d|n} A(d*x^n)^d ).at n=12A205500
• McKay-Thompson series of class 7A for the Monster group with a(0) = 9.at n=8A282877
• Indices n of Riemann zeta zeros where the Riemann-Siegel Z function sets successive records of maximum absolute values abs(Z(t)) in the interval between the n-th and (n+1)-th zeros.at n=38A329823
• a(n) is the numerator of f(n) where f(n) = 1/n for n <= 2 and f(2n) = f(n-1)*f(n+1)+1, and f(2n+1) = f(n)*f(n+1)+1 for n > 2.at n=24A338637