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A197459 as a simple table

na(n)
11
21
33
44
512
627
778
8208
9635
101859
115726
1217526
1354620
14170479
15536714
161694567
175376764
1817110286
1954631302
20174879997
21561229678
221805022806

[1,1,3,4,12,27,78,208,635,1859,5726,17526,54620,
 170479,536714,1694567,5376764,17110286,54631302,
 174879997,561229678,1805022806]