-131072
domain: Z
Appears in sequences
- Berstel sequence: a(n+1) = 2*a(n) - 4*a(n-1) + 4*a(n-2).at n=24A007420
- Expansion of e.g.f.: 1/2 + exp(-4*x)/2.at n=9A009117
- Array of coefficients in Zagier's polynomials P_(n,0)(x).at n=42A075733
- Determinant of the n X n matrix M_n(i,j) = C(i+j,i) (mod 3).at n=48A076880
- Expansion of 1/(1+2*x^3).at n=51A077959
- Expansion of 1/(1+2*x^2).at n=34A077966
- Expansion of (1-x)/(1-2*x^3).at n=52A078029
- Expansion of (1-x)/(1+2*x^3).at n=51A078030
- Expansion of (1-x)/(1+2*x+2*x^2).at n=35A078069
- Inverse binomial transform of A084101.at n=34A084102
- Expansion of (1+2*x)/(1+2*x+2*x^2).at n=34A090132
- Determinant of n X n partial Hadamard matrix with coefficient m(i,j) 1<=i,j<=n (see comment).at n=10A094384
- Array read by rows, starting with n=0: row n lists A057077(n+1)*8^(n+1)/2, A057077(n+2)*8^(n+1)/2, A057077(n+1)*8^(n+1).at n=16A096252
- Array read by rows, starting with n=0: row n lists A057077(n+1)*8^(n+1)/2, A057077(n+2)*8^(n+1)/2, A057077(n+1)*8^(n+1).at n=15A096252
- a(n) = 2^floor(n/2)*((-1)^floor(n/2) + (-1)^n)/2.at n=35A102561
- Expansion of g.f. (1 + 2*x) / (1 + 2*x + 4*x^2).at n=17A104538
- Expansion of 1/(1+2*x+2*x^2).at n=33A108520
- Triangle T, read by rows, where matrix power T^2 has 2*4^n in the secondary diagonal: [T^2](n+1,n) = 2*4^n, with all 1's in the main diagonal and zeros elsewhere.at n=25A117258
- Expansion of (1-x^3)/((1-x)*(1+2*x^2)).at n=35A117575
- Row sums of triangle A118435.at n=12A118437