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A189315 as a simple table

na(n)
05
110
230
3100
4350
51250
64500
716250
858750
9212500
10768750
112781250
1210062500
1336406250
14131718750
15476562500
161724218750
176238281250
1822570312500
1981660156250
20295449218750
211068945312500
223867480468750
2313992675781250
2450625976562500
25183166503906250
26662702636718750

[5,10,30,100,350,1250,4500,16250,58750,212500,
 768750,2781250,10062500,36406250,131718750,
 476562500,1724218750,6238281250,22570312500,
 81660156250,295449218750,1068945312500,
 3867480468750,13992675781250,50625976562500,
 183166503906250,662702636718750]