26992

Appears in sequences

• Triangle of coefficients of polynomials u(n,x) jointly generated with A208932; see the Formula section.at n=50A208931
• a(n) = n^3 - 8.at n=30A259348
• Number of inversion sequences avoiding pattern 010.at n=9A263779
• G.f.: (1 + x + 3*x^2 + 11*x^3 + 6*x^4 + 14*x^5 + 12*x^6 + 4*x^7 + 14*x^8 + 4*x^9 + 12*x^10 + 14*x^11 + 5*x^ 12 + 11*x^13 + 9*x^14 - 11*x^15)/((1 - x)^4*(1 - x^2)^12).at n=8A268244
• G.f.: exp( Sum_{n>=1} [ Sum_{k>=1} (2*k-1)^n * x^k ]^n / n ).at n=6A292500
• Perimeter of the Sierpiński carpet at iteration n.at n=5A381517