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A187255 as a simple table

na(n)
00
11
22
34
410
529
688
7281
8928
93170
1011108
1139844
12145700
13542099
142047390
157837154
1630359390
17118877686
18470023034
191874858180
207538907394
2130538466279
22124544812652
23511112081854
242109676656860
258754763717529
2636512355688438
27152987775947396

[0,1,2,4,10,29,88,281,928,3170,11108,39844,145700,
 542099,2047390,7837154,30359390,118877686,
 470023034,1874858180,7538907394,30538466279,
 124544812652,511112081854,2109676656860,
 8754763717529,36512355688438,152987775947396]