-393216
domain: Z
Appears in sequences
- Berstel sequence: a(n+1) = 2*a(n) - 4*a(n-1) + 4*a(n-2).at n=27A007420
- Expansion of (1-x^2)/(1+2x).at n=19A110164
- Triangle T, read by rows, where matrix power T^4 has powers of 4 in the secondary diagonal: [T^4](n+1,n) = 4^(n+1), with all 1's in the main diagonal and zeros elsewhere.at n=25A117254
- Diagonal of A129819.at n=19A130668
- a(n) = b(n+1)-2b(n) where b() is A134812.at n=36A134813
- a(0)=1. a(n) = 2^(n-2)*(5-n), for n>0.at n=17A172160
- Expansion of (7+8*x)/(1+2*x).at n=17A176414
- Hankel transform of Thue-Morse related sequence A106400.at n=18A186026