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A026887 as a simple table

na(n)
01
13
211
344
4186
5819
63725
717402
883156
9405116
102006696
1110083578
1251303146
13263851841
141369807435
157170160392
1637803475750
17200584271466
181070306614530
195739790997296
2030919312935436
21167228980869678
22907759276349466

[1,3,11,44,186,819,3725,17402,83156,405116,
 2006696,10083578,51303146,263851841,1369807435,
 7170160392,37803475750,200584271466,1070306614530,
 5739790997296,30919312935436,167228980869678,
 907759276349466]