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A019215 as a simple table

na(n)
30
42
50
64
70
840
90
10150
114
12610
1396
142798
15864
1613218
177192
1864934
1952332
20328222
21339808
221727350
232177700
249454774
2513785720
2653012810
2785897980
28303909174
29534416936
301779749852
313336552436
3210595394664
3320885768548
3463879012118

[0,2,0,4,0,40,0,150,4,610,96,2798,864,13218,7192,
 64934,52332,328222,339808,1727350,2177700,9454774,
 13785720,53012810,85897980,303909174,534416936,
 1779749852,3336552436,10595394664,20885768548,
 63879012118]