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A197164 as a simple table

na(n)
14
2104
31489
421826
5331406
65021137
776504483
81160102790
917605551567
10267441999728
114060960996702
1261654151235887
13936161404082139
1414215009257449597
15215837797323357413
163277242369403821064

[4,104,1489,21826,331406,5021137,76504483,
 1160102790,17605551567,267441999728,4060960996702,
 61654151235887,936161404082139,14215009257449597,
 215837797323357413,3277242369403821064]