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A357492 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
1010
1112
1211
1313
1414
1515
1616
1717
1818
1920
2024
2119
2221
2325
2422
2526
2623
2728
2827
2929
3030
3131
3232
3333
3434
3536
3640
3748
3835
3937
4041
4149
4238
4342
4450
4539
4644
4753
4843
4951
5045
5154
5246
5356
5447
5558
5652
5755
5857
5960
6059
6161
6262
6363
6464
6565
6666
6768

[0,1,2,3,4,5,6,7,8,9,10,12,11,13,14,15,16,17,18,
 20,24,19,21,25,22,26,23,28,27,29,30,31,32,33,34,
 36,40,48,35,37,41,49,38,42,50,39,44,53,43,51,45,
 54,46,56,47,58,52,55,57,60,59,61,62,63,64,65,66,
 68]