Nonzero ternary words such that any non-initial 1 is preceded by 0, and any non-initial 2 is preceded by 00.
A324474
Nonzero ternary words such that any non-initial 1 is preceded by 0, and any non-initial 2 is preceded by 00.
Terms
- a(0) =1a(1) =2a(2) =10a(3) =20a(4) =100a(5) =101a(6) =200a(7) =201a(8) =1000a(9) =1001a(10) =1002a(11) =1010a(12) =2000a(13) =2001a(14) =2002a(15) =2010a(16) =10000a(17) =10001a(18) =10002a(19) =10010a(20) =10020a(21) =10100a(22) =10101a(23) =20000a(24) =20001a(25) =20002a(26) =20010a(27) =20020a(28) =20100a(29) =20101
External references
- oeis: A324474