-41586
domain: Z
Appears in sequences
- Expansion of (1-x+sqrt(1-6x+x^2))/2 in powers of x.at n=9A085403
- Sum_{i=0..n} Sum_{j=0..i} a(j) * a(i-j) = (-11)^n.at n=5A085457
- Expansion of (1 + x + sqrt(1 - 6*x + x^2))/2 in powers of x.at n=9A086456
- Inverse of the Delannoy triangle.at n=45A103136
- First column of inverse of Delannoy triangle.at n=9A103137
- Riordan array ((1-x+sqrt(1+6*x+x^2))/2, (sqrt(1+6*x+x^2)-x-1)/2).at n=56A112477
- Riordan array ((1-x+sqrt(1-6x+x^2))/2, (1+x-sqrt(1-6x+x^2))/4).at n=45A117354
- -1 + Product_{n>=1} (1 + x^n)^a(n) = g.f. of A000040 (prime numbers).at n=37A305871