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A154949 as a simple table

na(n)
01
11
23
35
410
518
634
762
8115
9211
10389
11715
121316
132420
144452
158188
1615061
1727701
1850951
1993713
20172366
21317030
22583110
231072506
241972647
253628263
266673417
2712274327
2822576008
2941523752
3076374088
31140473848
32258371689
33475219625

[1,1,3,5,10,18,34,62,115,211,389,715,1316,2420,
 4452,8188,15061,27701,50951,93713,172366,317030,
 583110,1072506,1972647,3628263,6673417,12274327,
 22576008,41523752,76374088,140473848,258371689,
 475219625]