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A206102 as a simple table

na(n)
1256
22292
315564
495408
5574364
63472540
721122008
8129099360
9792188532
104877980340
1130132023264
12186677124664
131159672904860
147222244911020
1545083174298216
16282019092305744
171767599836030724
1811098250929281124

[256,2292,15564,95408,574364,3472540,21122008,
 129099360,792188532,4877980340,30132023264,
 186677124664,1159672904860,7222244911020,
 45083174298216,282019092305744,1767599836030724,
 11098250929281124]