3985807

Appears in sequences

• a(0) = 1; a(n) = (5*3^(n-1) - 1)/2 for n > 0.at n=14A060816
• a(0)=3, a(n) = 3*a(n-1) + 2*(-1)^n.at n=13A096019
• Expansion of (1+2x-x^3+x^4)/(1-4x^2+3x^4).at n=27A181655
• Expansion of (1+2*x+2*x^2-x^3)/((1-x)*(1+x)*(1-3x^2)).at n=27A220946
• a(n) = n+1 for n <= 2; otherwise a(n) = 3*a(n-3)+1.at n=40A329774
• Least number m for which there exists some positive k < m where the sum of the integers from k + 1 to m inclusive is an n-th power > 1.at n=26A372782