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A164990 as a simple table

na(n)
11
22
34
410
522
652
7114
8260
9564
101256
112698
125908
1312588
1427224
1557620
16123432
17259816
18552400
191157466
202446004
215105532
2210735352
2322334524
2446766200
2597021272
26202431152
27418935364
28871425160
291799558584

[1,2,4,10,22,52,114,260,564,1256,2698,5908,12588,
 27224,57620,123432,259816,552400,1157466,2446004,
 5105532,10735352,22334524,46766200,97021272,
 202431152,418935364,871425160,1799558584]