-804
domain: Z
Appears in sequences
- Expansion of bracket function.at n=7A006090
- Expansion of Product_{m>=1} (1+m*q^m)^-12.at n=5A022704
- McKay-Thompson series of class 14B for Monster.at n=19A058503
- Expansion of (1-x)^(-1)/(1+x^2-x^3).at n=39A077888
- Expansion of 1/(1-x^2(1-3x)).at n=15A106855
- Triangle read by rows: T(r,c)=T(r,c-1)+T(r,c+1)+T(r-1,c-1).at n=71A129394
- Expansion of q^-1 * (chi(-q) * chi(-q^7))^3 in powers of q where chi() is a Ramanujan theta function.at n=19A132319
- binomial(2n,n) - (2n)^pi(n), where pi(n) is the number of primes <= n.at n=5A220314
- Expansion of q * (chi(-q) / chi(-q^3))^12 in powers of q where chi() is a Ramanujan theta function.at n=5A226235
- First term of n-th difference sequence of (floor(k*r)), r = -sqrt(8), k >= 0.at n=12A325675
- a(n) = Sum_{k=0..n} binomial(n,k) * binomial(n+k,k) * (-n)^(n-k).at n=6A335310
- Product_{n>=1} (1 + a(n)*x^n) = 1 + Sum_{n>=1} phi(n)*x^n, where phi = A000010.at n=21A353925
- a(n) = Sum_{k = 0..n} binomial(-n, k) * 2^(n - k).at n=7A367548