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A159662 as a simple table

na(n)
01
11
23
313
477
5572
65114
753406
8637818
98572434
10128041458
112103949314
1237716766350
13732505270152
1415320768312784
15343335554738328
168207083694470392
17208444177385240472
185605513502234263272

[1,1,3,13,77,572,5114,53406,637818,8572434,
 128041458,2103949314,37716766350,732505270152,
 15320768312784,343335554738328,8207083694470392,
 208444177385240472,5605513502234263272]