39783domain: NAppears in sequencesNumbers k such that the period of the continued fraction for sqrt(k) contains exactly 27 ones.at n=18A031795The first 10 digits of the fifth root of n contain the digits 0-9.at n=20A119520Minimum value unattainable as the sum of 3 attained values of a*b*c with a,b,c 0..n integers.at n=25A225265