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A188564 as a simple table

na(n)
144
21936
342712
41204078
533878337
6924245906
725507294349
8703601341153
919385833712450
10534376376148754
1114729728015524015
12405999164002796680
1311190832837280857035
14308460516372631128792
158502292714849587051901

[44,1936,42712,1204078,33878337,924245906,
 25507294349,703601341153,19385833712450,
 534376376148754,14729728015524015,
 405999164002796680,11190832837280857035,
 308460516372631128792,8502292714849587051901]