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A103157 as a simple table

na(n)
170
217550
3635376
49691375
588201170
6566685735
72829877120
811671285626
941417124750
10130179173740
11370215608400
12968104633665
132357084537626
145396491792125
1511710951848960
1624246290643940
1748151733324310
1892140804597626
19170538695998000
20306294282269955

[70,17550,635376,9691375,88201170,566685735,
 2829877120,11671285626,41417124750,130179173740,
 370215608400,968104633665,2357084537626,
 5396491792125,11710951848960,24246290643940,
 48151733324310,92140804597626,170538695998000,
 306294282269955]