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A319409 as a simple table

na(n)
00
11
22
32
44
55
65
74
88
99
1010
1110
1210
1312
1411
158
1616
1717
1818
1918
2020
2121
2221
2320
2420
2523
2625
2724
2822
2926
3023
3116
3232
3333
3434
3534
3636
3737
3837
3936
4040
4141
4242
4342
4442
4544
4643
4740
4840
4945
5048
5146
5250
5352
5451
5548
5644
5751
5855
5952
6046
6154
6247
6332
6464
6565
6666
6766
6868
6969
7069
7168
7272
7373
7474
7574
7674
7776
7875
7972
8080
8181
8282
8382
8484
8585
8685
8784
8884
8987
9089
9188
9286
9390
9487
9580
9680

[0,1,2,2,4,5,5,4,8,9,10,10,10,12,11,8,16,17,18,18,
 20,21,21,20,20,23,25,24,22,26,23,16,32,33,34,34,
 36,37,37,36,40,41,42,42,42,44,43,40,40,45,48,46,
 50,52,51,48,44,51,55,52,46,54,47,32,64,65,66,66,
 68,69,69,68,72,73,74,74,74,76,75,72,80,81,82,82,
 84,85,85,84,84,87,89,88,86,90,87,80,80]