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A097979 as a simple table

na(n)
11
23
36
412
523
646
791
8183
9367
10737
111478
122962
135928
1411858
1523707
1647384
1794698
18189260
19378277
20756160
211511730
223022672
236044472
2412088395
2524177600
2648359695
2796732370
28193495606
29387057584
30774248858
311548754115
323097980230
336196797193
3412395022288

[1,3,6,12,23,46,91,183,367,737,1478,2962,5928,
 11858,23707,47384,94698,189260,378277,756160,
 1511730,3022672,6044472,12088395,24177600,
 48359695,96732370,193495606,387057584,774248858,
 1548754115,3097980230,6196797193,12395022288]