The word 1 belongs to the sequence, and whenever a word w belongs to the sequence, then the words consisting of 1's and 2's whose run lengths transform equals w also belong to the sequence.
A376637
The word 1 belongs to the sequence, and whenever a word w belongs to the sequence, then the words consisting of 1's and 2's whose run lengths transform equals w also belong to the sequence.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =12a(4) =21a(5) =22a(6) =112a(7) =122a(8) =211a(9) =221a(10) =1121a(11) =1122a(12) =1211a(13) =2122a(14) =2211a(15) =2212a(16) =11221a(17) =12112a(18) =12211a(19) =12212a(20) =21121a(21) =21122a(22) =21221a(23) =22112a(24) =112212a(25) =121122a(26) =212211a(27) =221121a(28) =1121122a(29) =1121221
External references
- oeis: A376637