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A085914 as a simple table

na(n)
11
21
32
44
54
66
76
88
98
1010
1110
1212
1312
1414
1514
1616
1716
1818
1918
2020
2120
2222
2322
2424
2524
2626
2726
2828
2928
3030
3130
3232
3332
3434
3534
3636
3736
3838
3938
4040
4140
4242
4342
4444
4544
4646
4746
4848
4948
5050
5150
5252
5352
5454
5554
5656
5756
5858
5958
6058
6158
6262
6363
6463
6562
6666
6764
6868
6968
7068
7170
7266

[1,1,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18,
 20,20,22,22,24,24,26,26,28,28,30,30,32,32,34,34,
 36,36,38,38,40,40,42,42,44,44,46,46,48,48,50,50,
 52,52,54,54,56,56,58,58,58,58,62,63,63,62,66,64,
 68,68,68,70,66]