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A248491 as a simple table

na(n)
122
2183
3844
42605
56306
613147
724208
840449
964030
1096391
11139212
12195013
13265714
14353595
15462136
16593137
17749598
18935839
191154140
201407621
211701562
222038603
232422584
242859145
253351406
263903807
274522948
285211829
295975610
306821731
317753672

[22,183,844,2605,6306,13147,24208,40449,64030,
 96391,139212,195013,265714,353595,462136,593137,
 749598,935839,1154140,1407621,1701562,2038603,
 2422584,2859145,3351406,3903807,4522948,5211829,
 5975610,6821731,7753672]