\"\"

\

The sequence is \"\".

\

\"\"                        (Substitute n = 0)

\

\"\"                              (Substitute \"\")

\

\"\"                        (Substitute k = 1)

\

\"\"                     (Substitute \"\") \"\"

\

\"\"                        (Substitute k = 2)

\

\"\"               (Substitute \"\")

\

\"\"                        (Substitute k = 3)

\

\"\"                     (Substitute \"\")

\

\"\"                        (Substitute k = 4)

\

\"\"                         (Substitute \"\")\"\"

\

The first five terms are \"\".