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A091352 as a simple table

na(n)
01
12
24
39
424
577
6295
71329
86934
941351
10278680
112101434
1217574552
13161740316
141626733108
1517771416521
16209739328924
172661301094008
1836148700652163
19523597247829867
208059284921781892
21131408547139817541

[1,2,4,9,24,77,295,1329,6934,41351,278680,2101434,
 17574552,161740316,1626733108,17771416521,
 209739328924,2661301094008,36148700652163,
 523597247829867,8059284921781892,
 131408547139817541]