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A090745 as a simple table

na(n)
11
22
33
45
56
67
716
817
918
10104
11127
12213
131143
144654
154897
1617046
1733424
1847407

[1,2,3,5,6,7,16,17,18,104,127,213,1143,4654,4897,
 17046,33424,47407]