Number of strings of length n in {2,3}* for which at least one of tail(2 S) > tail(S) and tail(3 S) > tail(S) holds.
A217437
Number of strings of length n in {2,3}* for which at least one of tail(2 S) > tail(S) and tail(3 S) > tail(S) holds.
Terms
- a(0) =2a(1) =1a(2) =2a(3) =1a(4) =5a(5) =3a(6) =12a(7) =9a(8) =19a(9) =16a(10) =38a(11) =20a(12) =59a(13) =42a(14) =104a(15) =65a(16) =213a(17) =111a(18) =400a(19) =245a(20) =765a(21) =439a(22) =1563a(23) =820a(24) =3046a(25) =1731a(26) =5955a(27) =3292a(28) =12078a(29) =6343
External references
- oeis: A217437