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105975英镑作为一个简单的表

n个a(n)
1199
2499
599
4919
5929
6991
7997
81999
92999
104999
118999
129199
139929
149949
1549999
1659999
1779999
1894999
1998999
2099929
2199989
2299991
23199999
24599999
25799999
26989999
27991999
28999199
29999499
30999599
31999959
32999979
332999999
344999999
359899999

[199,499,599,919,929,991,997,1999,2999,4999,8999,9199,9929,9949,49999,59999,79999,94999,98999,99929,99989,99991,199999,599999,799999,989999,991999,999199,999499,999599,999959,999979,2999999,4999999,9899999]