No 26

This continues or does it?
 
12 = 1
22 = (1+1)2 = 1+2+1
32 = (1+1+1)2 = 1+2+3+2+1
42 = (1+1+1+1)2 = 1+2+3+4+3+2+1
this continues... or does it?
 
12=1
112=121
1112=12321
11112=1234321
this continues... or does it?

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