-218
domain: Z
Appears in sequences
- Coefficients of modular function G_2(tau).at n=38A005760
- Expansion of Product_{m>=1} (1 + m*q^m)^-3.at n=9A022695
- Derivative of log of A007360.at n=33A023892
- McKay-Thompson series of class 40b for Monster.at n=41A058666
- McKay-Thompson series of class 44b for the Monster group.at n=55A112184
- Sum(mu(i)*phi(j): i+j=n), with mu=A008683 and phi=A000010.at n=59A112962
- Inverse Euler transform of A118052.at n=42A118054
- Expansion of f(-q)^2*P(q) in powers of q.at n=9A122163
- Expansion of chi(q^5) * chi(q^10) / ( chi(q) * chi(q^2)) in powers of q where chi() is a Ramanujan theta function.at n=49A128763
- First differences of A138383.at n=16A137174
- Expansion of (1+3*x^2)/(1+x)^2.at n=55A161718
- Expansion of (1/(1+4x+2x^2))*c(x/(1+4x+2x^2)), c(x) the g.f. of A000108.at n=5A184120
- Partial sums of A194577.at n=56A195133
- Triangle, read by rows of n^2 terms, where row n equals the coefficients in the series reversion of the function G(y,n)-1 such that: y = Sum_{m>=1} 1/G(y,n)^(2*n*m) * Product_{k=1..m} (1 - 1/G(y,n)^(2*k-1)).at n=34A214690
- Expansion of eta(q) * eta(q^9) * eta(q^21)^2 / (eta(q^3)^2 * eta(q^7) * eta(q^63)) in powers of q.at n=37A226059
- a(n) = Sum_{k=1..n} prime(k) * s(k), where s(k) = (-1)^(floor(k/2)).at n=50A233809
- Triangle read by rows of coefficients of polynomials generated by the Han/Nekrasov-Okounkov formula.at n=11A234937
- Smallest term in wrecker ball sequence starting with n.at n=16A248952
- Coefficients of the mock theta function gammabar(q).at n=47A260983
- Triangle of coefficients of Gaussian polynomials [2n+5,5]_q represented as finite sum of terms (1+q^2)^k*q^(g-k), where k = 0,1,...,g with g=5n.at n=23A267485