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A061991 as a simple table

na(n)
00
10
20
30
40
510
640
7164
8568
91614
103916
118492
1216852
1331100
1454068
1589428
16141812
17216932
18321700
19464348
20654548
21903532
221224212
231631300
242141428
252773268
263547652
274487692
285618900
296969308
308569588
3110453172
3212656372
3315218500
3418181988
3521592508

[0,0,0,0,0,10,40,164,568,1614,3916,8492,16852,
 31100,54068,89428,141812,216932,321700,464348,
 654548,903532,1224212,1631300,2141428,2773268,
 3547652,4487692,5618900,6969308,8569588,10453172,
 12656372,15218500,18181988,21592508]