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A033752 as a simple table

na(n)
01
12
22
34
44
56
612
712
816
918
1022
1132
1236
1344
1444
1560
1672
1776
1898
1988
20116
21144
22136
23164
24160
25194
26228
27232
28260
29244
30324
31344
32344
33408
34356
35484
36524
37484
38576
39552
40688
41732
42728
43804
44760
451014
46996
47972

[1,2,2,4,4,6,12,12,16,18,22,32,36,44,44,60,72,76,
 98,88,116,144,136,164,160,194,228,232,260,244,324,
 344,344,408,356,484,524,484,576,552,688,732,728,
 804,760,1014,996,972]