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A176868 as a simple table

na(n)
01
10
20
30
40
55
60
721
80
985
100
11341
12113
131365
14453
155461
161813
1721845
187281
1987381
2029125
21349525
22116501
231398101
24466033
255592405
261864133
2722369621
287456533
2989478485
3029826161
31357913941
32119304645
331431655765
34477218581
355726623061
361908874353

[1,0,0,0,0,5,0,21,0,85,0,341,113,1365,453,5461,
 1813,21845,7281,87381,29125,349525,116501,1398101,
 466033,5592405,1864133,22369621,7456533,89478485,
 29826161,357913941,119304645,1431655765,477218581,
 5726623061,1908874353]