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A120052 as a simple table

na(n)
00
10
20
30
47
5138
61878
723448
8279286
93230577
1036585097
11407818620
124490844534
1348972151631
14529781669333

[0,0,0,0,7,138,1878,23448,279286,3230577,36585097,
 407818620,4490844534,48972151631,529781669333]