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A125187 as a simple table

na(n)
01
11
23
312
452
5232
61049
74777
821845
9100159
10460023
112115350
129735205
1344829766
14206526972
15951759621
164387156587
1720226421380
1893264500832
19430091815527
201983549213861
219148582037193
2242197572190160
23194643215702835

[1,1,3,12,52,232,1049,4777,21845,100159,460023,
 2115350,9735205,44829766,206526972,951759621,
 4387156587,20226421380,93264500832,430091815527,
 1983549213861,9148582037193,42197572190160,
 194643215702835]