-950
domain: Z
Appears in sequences
- Triangle of coefficients in expansion of (x-1)*(x-3)*(x-5)*...*(x-(2*n-1)).at n=17A039757
- Triangle of B-analogs of Stirling numbers of first kind.at n=18A039758
- Expansion of (1-x)^(-1)/(1+x+2*x^3).at n=15A077906
- Triangle of signed numbers used for the computation of the column sequences of triangle A089504.at n=8A089505
- Expansion of eta(q)^6 * eta(q^2) / eta(q^4)^2 in powers of q.at n=36A245643
- 1-gonal pyramidal numbers.at n=18A254749
- Coefficients in the expansion of 1/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = 7/5.at n=27A279779
- G.f.: Product_{m>0} 1/(1 + x^m + 2*x^(2*m) + 3*x^(3*m)).at n=18A290395
- Expansion of Product_{k>=1} ((1 - 4^k*x^k)/(1 + 4^k*x^k))^(1/4^k).at n=7A303490
- a(n) = Sum_{d|n} (-1)^(d-1)*d^2.at n=27A321543
- a(n) = Sum_{k=1..n} (-k)^(k+1).at n=3A341330