635623

Appears in sequences

• a(n) = a(n-1) + a(n-2) - 1.at n=28A001588
• a(n+2) = a(n+1) + a(n) + (-1)^n, with a(1) = a(2) = 1.at n=29A066983
• Expansion of (-1-x-x^2-4*x^3-4*x^4+4*x^5+x^6+x^7+x^8) / ((x+1)*(x^2-x+1)*(x^2+x-1)*(x^4-x^3+2*x^2+x+1)).at n=27A108390
• Expansion of (-1-x-x^2-4*x^3-4*x^4+4*x^5+x^6+x^7+x^8) / ((x+1)*(x^2-x+1)*(x^2+x-1)*(x^4-x^3+2*x^2+x+1)).at n=28A108390
• a(n) = 2*(A000045(n)-(n mod 2)) + 1 + (n mod 2).at n=28A166012
• Constant term in the reduction by (x^2 -> x + 1) of the polynomial p(n,x) defined below at Comments.at n=15A192908
• a(0)=-1, a(1)=3; a(n+2) = a(n+1) + a(n) + 2*A057078(n+1).at n=28A227104
• a(n) = a(n-1) + a(n-3) + a(n-4), where a(0) = 2, a(1) = 1, a(2) = 2, a(3) = 1.at n=29A295686