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A018959 as a simple table

na(n)
21
314
432
5285
61214
78375
847347
9313140
102002655
1113551909
1292151432
13641986764
144517340881
1532200934374
16231513936373

[1,14,32,285,1214,8375,47347,313140,2002655,
 13551909,92151432,641986764,4517340881,
 32200934374,231513936373]