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A197549 as a simple table

na(n)
11
21
35
416
562
6276
71222
85563
925805
10120909
11572011
122727485
1313089106
1463164265

[1,1,5,16,62,276,1222,5563,25805,120909,572011,
 2727485,13089106,63164265]