List of words over {1,4} with equal numbers of 1's and 4's.

Terms

a(0) =14a(1) =41a(2) =1144a(3) =1414a(4) =1441a(5) =4114a(6) =4141a(7) =4411a(8) =111444a(9) =114144a(10) =114414a(11) =114441a(12) =141144a(13) =141414a(14) =141441a(15) =144114a(16) =144141a(17) =144411a(18) =411144a(19) =411414a(20) =411441a(21) =414114a(22) =414141a(23) =414411a(24) =441114a(25) =441141a(26) =441411a(27) =444111a(28) =11114444a(29) =11141444