50343939domain: NAppears in sequencesNumbers in base 10 that are palindromic in bases 2, 8, and 16.at n=20A319585Numbers in base 10 that are palindromic in bases 2, 4, 8, and 16.at n=13A319598Numbers in base 10 that are palindromic in bases 4, 8 and 16.at n=26A319609