131080domain: NAppears in sequencesa(n) = n*(4*n^4 + 1).at n=8A069078Positive integers with the same number of 1s in base 10 and base 2.at n=15A153115a(n) = n^2*(n^7+1)/2.at n=4A168125a(n) = 8*(2^n + 1).at n=14A175161a(n) = 2^n + 8.at n=17A242475