One-Two-GO Airlines 2009, the European Commission added One-Two-GO Airlines to its blacklist of airline operators banned from entering European airspace. One-Two-GO Airlines served domestic destinations Chiang Rai and Phuket from their base at Don Mueang International Airport in Bangkok. The One-Two-GO Airlines fleet consisted of the following aircraft: The airline was in negotiations with Japan Airlines to purchase several used MD-80s aircraft for expansion. This never happened. One-Two-GO Airlines One Two Go Airlines Co. Ltd () was a low-cost airline based in Don Mueang, Bangkok, Thailand. Its main base was Don Mueang International Airport, Bangkok. Always owned and managed by Orient Thai
Square-free word first difference of the Thue–Morse sequence. That is, from the Thue–Morse sequence one forms a new sequence in which each term is the difference of two consecutive terms of the Thue–Morse sequence. The resulting square-free word is Another example found by John Leech is defined recursively over the alphabet {"a, b, c"}. Let formula_1 be any word starting with the letter "a". Define the words formula_2 recursively as follows: the word formula_3 is obtained from formula_4 by replacing each "a" in formula_4 with , each "b" with , and each "c" with . It is possible to check that the