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A055737 as a simple table

na(n)
10
28
330
4112
5507
62837
717220
8111156
9759256
105425573
1140174725
12305689269
132379622234
1418887841658

[0,8,30,112,507,2837,17220,111156,759256,5425573,
 40174725,305689269,2379622234,18887841658]