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A210425 as a simple table

na(n)
10
20
34
460
5374
61960
79103
840497
9174127
10735268
113064477
1212664101
1352005445
14212595280
15866047122

[0,0,4,60,374,1960,9103,40497,174127,735268,
 3064477,12664101,52005445,212595280,866047122]