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A026767 as a simple table

na(n)
01
13
27
316
434
575
6157
7345
8721
91588
103322
117342
1215382
1334117
1471587
15159322
16334792
17747507
181572937
193522561
207421809
2116667530
2235158972
2379162689
24167170123
25377291856
26797535322
271803925336
283816705364

[1,3,7,16,34,75,157,345,721,1588,3322,7342,15382,
 34117,71587,159322,334792,747507,1572937,3522561,
 7421809,16667530,35158972,79162689,167170123,
 377291856,797535322,1803925336,3816705364]