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A197201 as a simple table

na(n)
11
25
316
447
5154
6496
71601
85183
916777
1054298
11175777
12569008
131841952
145962675
1519302067
1662483633
17202268864
18654774451
192119602518
206861469468
2122211599969
2271902261547
23232758343993
24753473472226
252439106000077
267895749882524

[1,5,16,47,154,496,1601,5183,16777,54298,175777,
 569008,1841952,5962675,19302067,62483633,
 202268864,654774451,2119602518,6861469468,
 22211599969,71902261547,232758343993,753473472226,
 2439106000077,7895749882524]