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A068765 as a simple table

na(n)
01
11
26
339
4270
51962
614796
7114831
8911574
97368894
1060457428
11502162902
124214515212
1335686162548
14304491863448
152615468845311
1622598114065254
17196269877811574
181712578870493316
1915005719955119698

[1,1,6,39,270,1962,14796,114831,911574,7368894,
 60457428,502162902,4214515212,35686162548,
 304491863448,2615468845311,22598114065254,
 196269877811574,1712578870493316,
 15005719955119698]