5726623062

Appears in sequences

• a(2*n) = 2*a(2*n-1), a(2*n+1) = 2*a(2*n)-1.at n=34A005578
• a(n) = a(n-1) + 2*a(n-2) with a(0)=0, a(1)=2.at n=33A014113
• a(n) = C(n,2) + C(n,5) + ... + C(n, 3*floor(n/3)+2).at n=34A024495
• a(n) = (4^n + 2)/3.at n=17A047849
• Expansion of (1 - x)/((1 + x)*(1 - 2*x)).at n=34A078008
• a(n) = 2^n - A081374(n).at n=32A083322
• Binomial transform of (-1)^mod(n,3) (A257075).at n=34A086953
• Generalized multiplicative Jacobsthal sequence.at n=34A087464
• Expansion of (1-4x+6x^2-3x^3)/(1-5x+9x^2-8x^3+4x^4).at n=30A093041
• Pair reversal of a Jacobsthal sequence.at n=35A094359
• Expansion of -2*x*(-3-2*x+4*x^2) / ((x-1)*(2*x+1)*(2*x-1)*(1+x)).at n=31A120462
• Jacobsthal numbers(A001045) + 1.at n=34A128209
• a(n) = ceiling(8^n/n).at n=11A129792
• A trisection of A024495.at n=11A132804
• Row sums of triangle A135230.at n=33A135231
• a(n) = a(n-1) + 4*a(n-2) - 4*a(n-3) for n > 2; a(0)=2, a(1)=3, a(2)=6.at n=32A137208
• G.f.: (1+x)/(1+x-2*x^2).at n=34A151575
• a(0)=1, a(n)= 2+2^n/6+4*(-1)^n/3, n>0.at n=35A173197
• Expansion of x*(1+3*x)/ ( (1-4*x)*(1+x+x^2)).at n=17A191597
• a(n) = 2*a(n-1) - a(n-3) + 2*a(n-4), a(0)=a(1)=0, a(2)=2, a(3)=3.at n=34A242563