88988domain: NAppears in sequencesInteger part of Gauss's Arithmetic-Geometric Mean M(2,n^4).at n=29A127765Numbers which have only digits 8 and 9 in base 10.at n=34A256341Numbers whose smallest decimal digit is 8.at n=30A284069a(n) = 8*(10^(2n+1)-1)/9 + 10^n.at n=2A332189