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A283877 as a simple table

na(n)
01
11
22
34
49
518
644
798
8244
9605
101595
114273
1212048
1334790
14104480
15322954
161031556
173389413
1811464454
1939820812
20141962355
21518663683
221940341269
237424565391
2429033121685
25115921101414
26472219204088
271961177127371
288298334192288
2935751364047676
30156736154469354

[1,1,2,4,9,18,44,98,244,605,1595,4273,12048,34790,
 104480,322954,1031556,3389413,11464454,39820812,
 141962355,518663683,1940341269,7424565391,
 29033121685,115921101414,472219204088,
 1961177127371,8298334192288,35751364047676,
 156736154469354]