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A019191 as a simple table

na(n)
30
40
54
66
74
816
960
1088
11228
12646
131478
143378
159204
1623076
1756962
18147596
19386464
20997460
212604046
226887292
2318184174
2448134500
25128142898
26341816941
27912850576
282444465346
296558718548
3017620876747
3147420177380

[0,0,4,6,4,16,60,88,228,646,1478,3378,9204,23076,
 56962,147596,386464,997460,2604046,6887292,
 18184174,48134500,128142898,341816941,912850576,
 2444465346,6558718548,17620876747,47420177380]