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A321121 as a simple table

na(n)
00
11
21
31
44
51
63
79
89
93
1013
1144
1230
1344
1413
1535
16115
1790
1890
19115
2035
2116
2253
2340
2446
2540
2653
2716
28131
29433
30330
31366
32366
33330
34433
35131
36179
37592
38450
39504
40486
41504
42450
43592
44179
45163
46539
47410
48458
49446
50446
51458
52410
53539
54163
55668
562209
571680
581878
591824
601842
611824
621878
631680
642209
65668

[0,1,1,1,4,1,3,9,9,3,13,44,30,44,13,35,115,90,90,
 115,35,16,53,40,46,40,53,16,131,433,330,366,366,
 330,433,131,179,592,450,504,486,504,450,592,179,
 163,539,410,458,446,446,458,410,539,163,668,2209,
 1680,1878,1824,1842,1824,1878,1680,2209,668]