286216701domain: NAppears in sequencesPowers of sqrt(20) rounded down.at n=13A017964Powers of sqrt(20) rounded to nearest integer.at n=13A017965Powers of fourth root of 20 rounded down.at n=26A018102Powers of fourth root of 20 rounded to nearest integer.at n=26A018103Integer part of square root of A010801.at n=20A155016