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A054878 as a simple table

na(n)
01
10
23
36
421
560
6183
7546
81641
94920
1014763
1144286
12132861
13398580
141195743
153587226
1610761681
1732285040
1896855123
19290565366
20871696101
212615088300
227845264903
2323535794706
2470607384121
25211822152360
26635466457083

[1,0,3,6,21,60,183,546,1641,4920,14763,44286,
 132861,398580,1195743,3587226,10761681,32285040,
 96855123,290565366,871696101,2615088300,
 7845264903,23535794706,70607384121,211822152360,
 635466457083]