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A321291 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1313
1414
1516
1617
1718
1819
1920
2021
2122
2223
2324
2426
2527
2628
2732
2834
2936
3038
3140
3242
3344
3446
3548
3652
3754
3856
3964
4068
4172
4276
4380
4484
4588
4692
4796
48104
49108
50112
51128
52136
53144
54152
55160
56168
57176
58184
59192
60208
61216
62224
63256

[1,2,3,4,5,6,7,8,9,10,11,12,13,14,16,17,18,19,20,
 21,22,23,24,26,27,28,32,34,36,38,40,42,44,46,48,
 52,54,56,64,68,72,76,80,84,88,92,96,104,108,112,
 128,136,144,152,160,168,176,184,192,208,216,224,
 256]