I am trying to figure out the sequence. 1,2,1,1,2,3,2,1,1,2,3,4,3... what's next? Cant figure out the pattern.

Question

Trying to figure out the pattern, and I can't seem to find one. I need help 

Answer 1

you don't give a lot of terms, but...

121  12321  1234321  123454321  12345654321...

Answer 2

1, 2, 1, 

1, 2, 3, 2, 1, 

1, 2, 3, 4, 3, 2, 1, 

1, 2, 3, 4, 5, 4, 3, 2, 1, 

 

See the pattern?