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A089456 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
178
18179
192509
2025609
21214932
221578984
2310536260
2465411645
25383981499
262156114468

[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,179,2509,25609,
 214932,1578984,10536260,65411645,383981499,
 2156114468]