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A078628 as a simple table

na(n)
11
21
30
44
512
676
7494
83662
930574
10284398
112918924
1232791604
13400400062
145281683678
1574866857910
161135063409918
1718330526475060
18314169905117860
195695984717957246
20108921059813769710
212190998123920252622
2246250325111346491694

[1,1,0,4,12,76,494,3662,30574,284398,2918924,
 32791604,400400062,5281683678,74866857910,
 1135063409918,18330526475060,314169905117860,
 5695984717957246,108921059813769710,
 2190998123920252622,46250325111346491694]