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A280214 as a simple table

na(n)
16
292
3886
47048
549328
6320755
72001079
812072893
971202942
10412532945
112356359770
1213301182445
1374334613125
14411868280767
152265028406966
1612374632703132
1767213554157525
18363176806160897
191953185818717956

[6,92,886,7048,49328,320755,2001079,12072893,
 71202942,412532945,2356359770,13301182445,
 74334613125,411868280767,2265028406966,
 12374632703132,67213554157525,363176806160897,
 1953185818717956]