-243
domain: Z
Appears in sequences
- Expansion of bracket function.at n=10A000748
- a(n) = norm of Heilbronn sum NH_{p}, with p = prime(n).at n=3A006310
- McKay-Thompson series of class 3B for the Monster group.at n=4A007244
- McKay-Thompson series of class 3B for the Monster group with a(0) = -12.at n=4A030182
- Column 2 of Inverse partition triangle A038498.at n=60A039801
- McKay-Thompson series of class 3B for the Monster group with a(0) = -3.at n=4A045481
- Dirichlet inverse of sigma_3 function (A001158).at n=17A053825
- a(n) = n^2 - primefloor(n)*primeceiling(n).at n=60A056139
- a(n) = n^2 - previousprime(n)*nextprime(n), for n>2.at n=59A056140
- Scaled Chebyshev U-polynomials evaluated at sqrt(3)/2; expansion of 1/(1 - 3*x + 3*x^2).at n=9A057083
- Scaled Chebyshev U-polynomials evaluated at sqrt(3)/2; expansion of 1/(1 - 3*x + 3*x^2).at n=10A057083
- Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 3.at n=55A060022
- Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 4.at n=33A060023
- Euler transform of negative integers.at n=24A073592
- Expansion of (1-x)^(-1)/(1-x+2*x^2+2*x^3).at n=10A077878
- Expansion of (1-x)^(-1)/(1+2*x^2+2*x^3).at n=12A077895
- Triangle, read by rows, where the n-th row lists the (2*n+1) coefficients of (1 + x - 3*x^2)^n.at n=35A084614
- Triangle, read by rows, where the n-th row lists the (2*n+1) coefficients of (1 + x - 3*x^2)^n.at n=46A084614
- Expansion of (1-3*x+12*x^2)/((1-3*x)*(1+3*x)).at n=5A091103
- Inverse image of primes 2,3,5,7,... under the map Q defined in A095172.at n=53A095174