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A232730 as a simple table

na(n)
15
245
3495
44905
549500
6494550
74950000
849495500
9495000000
104949955000
1149500000000
12494999550000
134950000000000
1449499995500000
15495000000000000
164949999955000000
1749500000000000000
18494999999550000000
194950000000000000000
2049499999995500000000

[5,45,495,4905,49500,494550,4950000,49495500,
 495000000,4949955000,49500000000,494999550000,
 4950000000000,49499995500000,495000000000000,
 4949999955000000,49500000000000000,
 494999999550000000,4950000000000000000,
 49499999995500000000]