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A030801 as a simple table

na(n)
12
24
312
448
5243
61462
710234
881873
9736865
107368656
1181055217
12972662611
1312644613946
14177024595248
152655368928725
1642485902859600
17722260348613214
1813000686275037868
19247013039225719510
204940260784514390215

[2,4,12,48,243,1462,10234,81873,736865,7368656,
 81055217,972662611,12644613946,177024595248,
 2655368928725,42485902859600,722260348613214,
 13000686275037868,247013039225719510,
 4940260784514390215]