888888889

Appears in sequences

• a(0)=1, a(n) = a(n-1) + 8*10^(n-1).at n=9A059482
• First superdiagonal of number array A083064.at n=8A083070
• Numbers k such that the concatenation of 8*k with k gives a square.at n=10A115551
• Expansion of (1 + 4*x - 6*x^2) / ((1 - x) * (1 - 10*x^2)).at n=18A328333