6600000domain: NAppears in sequencesTriangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*11^j.at n=22A038313Triangle read by rows whose (i,j)-th entry is binomial(i,j)*11^(i-j)*10^j.at n=26A038324Numbers k such that k and k^2 use only the digits 0, 3, 4, 5 and 6.at n=36A136927