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  1. a=1,1,3,4
  2. n=input()
  3. y=0
  4. exec"y+=1;t='';x=0;%sprint t;"%(n*"a+=a[-2]*4-a[-4],;v=`a[x]`;t+=[v,len(v)*' '][x+y&1];x+=1;")*3
Success #stdin #stdout 0.02s 9128KB
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20
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 1 4  15  56   209   780    2911    10864     40545      151316
1 3 11  41  153   571   2131    7953     29681     110771      
 1 4  15  56   209   780    2911    10864     40545      151316
https://ideone.com/CgYCWQ
language:
Python (cpython 2.7.16)
created:
7 years ago
visibility:
public

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