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A218752 as a simple table

na(n)
00
11
251
32551
4127551
56377551
6318877551
715943877551
8797193877551
939859693877551
101992984693877551
1199649234693877551
124982461734693877551
13249123086734693877551
1412456154336734693877551
15622807716836734693877551
1631140385841836734693877551

[0,1,51,2551,127551,6377551,318877551,15943877551,
 797193877551,39859693877551,1992984693877551,
 99649234693877551,4982461734693877551,
 249123086734693877551,12456154336734693877551,
 622807716836734693877551,
 31140385841836734693877551]