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A037743 as a simple table

na(n)
12
221
3213
42130
521302
6213021
72130213
821302130
9213021302
102130213021
1121302130213
12213021302130
132130213021302
1421302130213021
15213021302130213
162130213021302130
1721302130213021302
18213021302130213021
192130213021302130213
2021302130213021302130

[2,21,213,2130,21302,213021,2130213,21302130,
 213021302,2130213021,21302130213,213021302130,
 2130213021302,21302130213021,213021302130213,
 2130213021302130,21302130213021302,
 213021302130213021,2130213021302130213,
 21302130213021302130]