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A153521 as a simple table

na(n)
12
211
311
42
5238
62
72
81329
91329
102
112
121353
135276
141353
152
162
171377
1821248
1921248
201377
212
222
231401
2437508
25100532
2637508
271401
282
292
301425
3154056
32371768
33371768
3454056
351425
362
372
381449
3970892
40838412
411849388
42838412
4370892
441449
452
462
471473
4888016
491503920
506777248
516777248
521503920
5388016
541473
552

[2,11,11,2,238,2,2,1329,1329,2,2,1353,5276,1353,2,
 2,1377,21248,21248,1377,2,2,1401,37508,100532,
 37508,1401,2,2,1425,54056,371768,371768,54056,
 1425,2,2,1449,70892,838412,1849388,838412,70892,
 1449,2,2,1473,88016,1503920,6777248,6777248,
 1503920,88016,1473,2]