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A028203 as a simple table

na(n)
01
133
2691
311757
4177835
52499021
633451867
7433216509
85483226859
968297761389
10841179979003
1110278678991581
12124904130163723
131511929278991437
1418252066460636699
15219926530250218173

[1,33,691,11757,177835,2499021,33451867,433216509,
 5483226859,68297761389,841179979003,
 10278678991581,124904130163723,1511929278991437,
 18252066460636699,219926530250218173]