4194298

Appears in sequences

• a(n) = T(7,n), array T given by A047858.at n=18A048468
• a(0)=0; for n>0, a(n) = A102371(4n)/4.at n=6A104403
• Binomial transform of [1,1,7,1,7,1,7,1,...].at n=20A131130
• a(n) = round((2^n - n - 1)/4).at n=23A173010
• Expansion of (1+2x)*(1+2*x^2)/((1-x)*(1+x)*(1-2*x^2)).at n=39A185647
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 211", based on the 5-celled von Neumann neighborhood.at n=21A279876