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A357873 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1515
1616
1717
1818
1919
2020
2121
2222
2323
2424
2525
2626
2727
2828
2929
3031
3132
3233
3334
3435
3537
3638
3739
3840
3941
4043
4144
4245
4346
4447
4548
4649
4750
4851
4952
5053
5154
5255
5356
5457
5558
5659
5761
5862
5963
6064
6165
6267
6368
6469
6571
6672
6773

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,
 20,21,22,23,24,25,26,27,28,29,31,32,33,34,35,37,
 38,39,40,41,43,44,45,46,47,48,49,50,51,52,53,54,
 55,56,57,58,59,61,62,63,64,65,67,68,69,71,72,73]