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A300542 as a simple table

na(n)
12
237
3450
45232
561561
6724165
78514930
8100122064
91177281510
1013843038446
11162773058221
121913963384213
1322505296146317
14264628027537059
153111622815745035
1636587948139816223
17430218579935902604

[2,37,450,5232,61561,724165,8514930,100122064,
 1177281510,13843038446,162773058221,1913963384213,
 22505296146317,264628027537059,3111622815745035,
 36587948139816223,430218579935902604]