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A188577 as a simple table

na(n)
10
21
32
48
518
639
789
8195
9415
10865
111823
123787
137869
1416230
1533352
1668422
17140013
18285991
19583235
201187718

[0,1,2,8,18,39,89,195,415,865,1823,3787,7869,
 16230,33352,68422,140013,285991,583235,1187718]