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A019123 as a simple table

na(n)
30
40
54
66
74
830
965
10104
11277
12756
131542
143615
159759
1623306
1755566
18145499
19370660
20933344
212428144
226345229
2316500325
2443314782
25114383765
26302057417
27799656246
282124592221
295652658289
3015058739676
3140201128401

[0,0,4,6,4,30,65,104,277,756,1542,3615,9759,23306,
 55566,145499,370660,933344,2428144,6345229,
 16500325,43314782,114383765,302057417,799656246,
 2124592221,5652658289,15058739676,40201128401]