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A137195 as a simple table

na(n)
01
16
219
364
4185
5542
61511
74144
811329
929894
1080731
11207696
12556217
131405566
143741263
159328928
1624716353
1760998086
18161022115
19394136864
201037382905
212522256670
226622609463
2316012527312
2441958312193
25100973218566

[1,6,19,64,185,542,1511,4144,11329,29894,80731,
 207696,556217,1405566,3741263,9328928,24716353,
 60998086,161022115,394136864,1037382905,
 2522256670,6622609463,16012527312,41958312193,
 100973218566]