-1539
domain: Z
Appears in sequences
- Row sums of number triangle related to the Jacobsthal numbers.at n=28A110325
- a(n)=9*(a(n-1)a(n-3)-a(n-2)^2)/a(n-4), a(1)=a(2)=a(3)=1, a(4)=-9.at n=5A160569
- Expansion of Product_{k>0} (1 - x^k)^(k*3).at n=16A276552
- Expansion of Product_{k>=1} (1 - x^k)^(k+1).at n=34A299019
- Expansion of Product_{n>=1} (1 + (9*x)^n)^(-1/3).at n=6A303130
- a(n) = 3*a(n-1) + 4*a(n-2) + a(n-3), a(0) = 1, a(1) = -1, a(2) = -1 .at n=7A321715