-698
domain: Z
Appears in sequences
- Expansion of g.f. Product_{n>=1} (1-x^n)*(1-x^(5*n))/(1-x^(3*n))^2.at n=37A054274
- Inverse of the Delannoy triangle.at n=22A103136
- Second column of inverse of Delannoy triangle.at n=6A103138
- Expansion of g.f. (1-x+x^2)/(1+x-x^3).at n=45A104771
- Difference between n and the sum of the factorials of its digits.at n=45A108911
- McKay-Thompson series of class 16f for the Monster group.at n=41A112153
- McKay-Thompson series of class 16h for the Monster group.at n=41A112155
- Riordan array ((1-x+sqrt(1+6*x+x^2))/2, (sqrt(1+6*x+x^2)-x-1)/2).at n=30A112477
- Expansion of chi(-q) * chi(-q^15) / (chi(-q^6) * chi(-q^10)) in powers of q where chi() is a Ramanujan theta function.at n=51A132968
- First differences of A138383.at n=40A137174
- Expansion of f(-q^2, -q^5)^3 / (f(-q^1, -q^6) * f(-q^3, -q^4)^2) in powers of q where f(, ) is Ramanujan's general theta function.at n=33A262933
- G.f.: Im((2*i; x)_oo), where (a; q)_oo is the q-Pochhammer symbol, i = sqrt(-1).at n=20A292140
- a(n) = [x^n] Product_{d|n} 1/(1 + x^d).at n=75A300548