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A188177 as a simple table

na(n)
11
25
318
469
5252
6920
73370
812346
945207
10165821
11609734
122247151
138300708
1430734578
15114067100
16424306230
171581788460
185909243454
1922120325320
2082963636468
21311732564498
221173377033602
234424032482238
2416706682557212

[1,5,18,69,252,920,3370,12346,45207,165821,609734,
 2247151,8300708,30734578,114067100,424306230,
 1581788460,5909243454,22120325320,82963636468,
 311732564498,1173377033602,4424032482238,
 16706682557212]