-9996

Appears in sequences

• Expansion of 1/((1+x)^7 - x^7).at n=11A049018
• Seventh convolution of A115140.at n=13A115146
• Expansion of -x*(2*x - 1)*(2*x^2 - 1)*(x^3 + 2*x^2 - x - 1)/((x - 1)*(x^2 + x - 1)*(x^4 - 4*x^3 - 4*x^2 + x + 1)).at n=19A122605
• Riordan array (2c(-x)-1, xc(-x)^3), c(x) the g.f. of A000108.at n=39A159971
• a(n) = (-6*n^7 + 154*n^6 - 1533*n^5 + 7525*n^4 - 18879*n^3 + 22561*n^2 - 7302*n + 2520)/2520.at n=13A161710