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A330659 as a simple table

na(n)
01
11
21
31
43
54
612
727
878
9208
10637
111870
125797
1317866
1456237
15177573
16566904
171818527
185874180
1919065038

[1,1,1,1,3,4,12,27,78,208,637,1870,5797,17866,
 56237,177573,566904,1818527,5874180,19065038]