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A112002 as a simple table

na(n)
1720
213068
3118124
4723680
53416930
613339535
744990231
8135036473
9368411615
10928095740
112185031420
124853222764
1310246937272
1420692933630
1540171771630
1675289668850
17136717357942
18241276443496
19414908513800
20696829576300

[720,13068,118124,723680,3416930,13339535,
 44990231,135036473,368411615,928095740,2185031420,
 4853222764,10246937272,20692933630,40171771630,
 75289668850,136717357942,241276443496,
 414908513800,696829576300]