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A263218 as a simple table

na(n)
12
214
372
4343
51920
611444
768112
8405019
92422502
1014527358
1187130296
12522558079
133134839248
1418808467356
15112848487824
16677075548723
174062417593558
1824374464952438
19146246626666296
20877478675492551
215264869525163232

[2,14,72,343,1920,11444,68112,405019,2422502,
 14527358,87130296,522558079,3134839248,
 18808467356,112848487824,677075548723,
 4062417593558,24374464952438,146246626666296,
 877478675492551,5264869525163232]