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A293341 as a simple table

na(n)
00
11
21
33
46
512
624
747
894
9188
10377
11753
121507
133014
146027
1512055
1624109
1748219
1896437
19192875
20385750
21771499
221542998
233085996
246171993
2512343986
2624687971
2749375943
2898751886
29197503771
30395007542
31790015084
321580030169
333160060337
346320120675

[0,1,1,3,6,12,24,47,94,188,377,753,1507,3014,6027,
 12055,24109,48219,96437,192875,385750,771499,
 1542998,3085996,6171993,12343986,24687971,
 49375943,98751886,197503771,395007542,790015084,
 1580030169,3160060337,6320120675]