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A060911 as a simple table

na(n)
01
11
24
325
4218
52331
629152
7417607
86746700
9121312441
102401341056
1151857779689
121212621122176
1330509979042115
14821524617293304
1523563369209520711
16717014609781379568
1723064363484845390513

[1,1,4,25,218,2331,29152,417607,6746700,121312441,
 2401341056,51857779689,1212621122176,
 30509979042115,821524617293304,23563369209520711,
 717014609781379568,23064363484845390513]