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A070767 as a simple table

na(n)
10
20
30
40
50
65
739
8394
92784
1019164
11118762
12579460
133110267
1415264387
1575007623
16369928203
171817475619
188913862144
1943914857957
20216555328193
211070588132492

[0,0,0,0,0,5,39,394,2784,19164,118762,579460,
 3110267,15264387,75007623,369928203,1817475619,
 8913862144,43914857957,216555328193,1070588132492]