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A197460 as a simple table

na(n)
11
21
34
46
519
649
7143
8403
91235
103681
1111354
1234944
13108956
14340635
151072593
163388161
1710751029
1834217608
19109255023
20349750874
211122436127
223610017340

[1,1,4,6,19,49,143,403,1235,3681,11354,34944,
 108956,340635,1072593,3388161,10751029,34217608,
 109255023,349750874,1122436127,3610017340]