In 1984 Dan Hoey, a US naval mathematician, wrote a computer which he used to create a 540-word expansion of Leigh Mercer's "Panama" palindrome (PD). It began "A man, a plan, a caret, a ban, a myriad, a sum, a lac..." and ended "...a calmus, a diaryman, a bater, a canal Panama." (For the full PD, plus additional information, see http://www2.vo.lu/homepages/phahn/anagrams/panama/htm.)
O'Connor, Bill A.
"An Automatic Palindrome Generator,"
Word Ways: Vol. 35
, Article 2.
Available at: http://digitalcommons.butler.edu/wordways/vol35/iss1/2