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A261982 as a simple table

na(n)
00
10
21
31
45
511
621
751
8109
9229
10455
11959
121947
133963
147999
1516033
1632333
1764919
18130221
19260967
20522733
211045825
222093855
234189547
248382315
2516768455
2633543127
2767093261
28134193413
29268404995
30536829045
311073686083
322147408773
334294869253
348589803783

[0,0,1,1,5,11,21,51,109,229,455,959,1947,3963,
 7999,16033,32333,64919,130221,260967,522733,
 1045825,2093855,4189547,8382315,16768455,33543127,
 67093261,134193413,268404995,536829045,1073686083,
 2147408773,4294869253,8589803783]