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A152161 as a simple table

na(n)
021
1221
2621
31221
42021
53021
64221
75621
87221
99021
1011021
1113221
1215621
1318221
1421021
1524021
1627221
1730621
1834221
1938021
2042021
2146221
2250621
2355221
2460021
2565021
2670221
2775621
2881221
2987021
3093021
3199221
32105621
33112221
34119021
35126021
36133221
37140621
38148221

[21,221,621,1221,2021,3021,4221,5621,7221,9021,
 11021,13221,15621,18221,21021,24021,27221,30621,
 34221,38021,42021,46221,50621,55221,60021,65021,
 70221,75621,81221,87021,93021,99221,105621,112221,
 119021,126021,133221,140621,148221]