7049155

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 1, with a(0) = a(1) = 1.at n=32A001595
• a(n) = 2*Fibonacci(n) - (1 - (-1)^n)/2.at n=33A062114
• a(n+2) = a(n+1) + a(n) + (-1)^n, with a(1) = a(2) = 1.at n=34A066983
• a(n) = 2*Fibonacci(2*n+1) - 1.at n=16A069403
• Expansion of (1 - x + 3*x^2 + 4*x^4 + 8*x^5 + 3*x^6 + x^7 + x^8) / ((1 + x)*(1 - x + x^2)*(1 - x - x^2)*(1 + x + 2*x^2 - x^3 + x^4)).at n=32A108391
• Expansion of (1 - x + 3*x^2 + 4*x^4 + 8*x^5 + 3*x^6 + x^7 + x^8) / ((1 + x)*(1 - x + x^2)*(1 - x - x^2)*(1 + x + 2*x^2 - x^3 + x^4)).at n=33A108391
• Row sums of A128586.at n=34A128587
• a(0)=-1, a(1)=3; a(n+2) = a(n+1) + a(n) + 2*A057078(n+1).at n=33A227104
• a(n) = a(n-1) + a(n-2) + (1 - (-1)^(a(n-1) + a(n-2))) with a(0) = 0, a(1) = 1.at n=32A253197