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A339393 as a simple table

na(n)
11
21
34
47
528
656
788
8594
95808
10415272
118758464
12274431872
1312856077696
14905435186304
15481691519113728
1677763074616922464
173824113551749834112
181437016892446437662976
19165559472503434318118656
20146602912901791088694069888
21200050146291129782743679367168

[1,1,4,7,28,56,88,594,5808,415272,8758464,
 274431872,12856077696,905435186304,
 481691519113728,77763074616922464,
 3824113551749834112,1437016892446437662976,
 165559472503434318118656,
 146602912901791088694069888,
 200050146291129782743679367168]