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A238898 as a simple table

na(n)
11
22
34
46
58
610
710
814
916
1018
1118
1222
1322
1426
1526
1626
1732
1834
1934
2038
2138
2238
2338
2446
2546
2650
2750
2854
2954
3058
3158
3262
3364
3464
3564
3664
3764
3874
3974
4074
4174
4282
4382
4486
4586
4686
4786
4894
4994
5098
5198
5298
5398
54106
55106
56106
57106
58106
59106
60118
61118
62122
63122
64122

[1,2,4,6,8,10,10,14,16,18,18,22,22,26,26,26,32,34,
 34,38,38,38,38,46,46,50,50,54,54,58,58,62,64,64,
 64,64,64,74,74,74,74,82,82,86,86,86,86,94,94,98,
 98,98,98,106,106,106,106,106,106,118,118,122,122,
 122]