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A261009 as a simple table

na(n)
01
12
22
34
44
54
64
76
84
98
108
1110
1210
138
1410
1516
1612
1714
1812
1916
2014
2118
2216
2312
2410
2512
2614
2720
2820
2922
3024
3126
3224
3322
3422
3522
3618
3720
3826
3928
4028
4128
4226
4330
4430
4530
4626
4726
4826
4932
5038
5140
5238
5338
5428
5534
5640
5742
5838
5940
6046
6140
6238
6342
6448
6544
6642
6740
6842
6948
7048
7144

[1,2,2,4,4,4,4,6,4,8,8,10,10,8,10,16,12,14,12,16,
 14,18,16,12,10,12,14,20,20,22,24,26,24,22,22,22,
 18,20,26,28,28,28,26,30,30,30,26,26,26,32,38,40,
 38,38,28,34,40,42,38,40,46,40,38,42,48,44,42,40,
 42,48,48,44]