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A227415 as a simple table

na(n)
00
10
21
32
47
53
69
769
8177
960
102715
114500
1242975
13104580
1491665
15186795
163493665
1713497435
1897345395
19442245825
202601636975
2113003053525
2270985324025
2364585694250
2457891366225
253576632909850
269411029102475
27147580842959550
28476966861546175
295708173568847750

[0,0,1,2,7,3,9,69,177,60,2715,4500,42975,104580,
 91665,186795,3493665,13497435,97345395,442245825,
 2601636975,13003053525,70985324025,64585694250,
 57891366225,3576632909850,9411029102475,
 147580842959550,476966861546175,5708173568847750]