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A068555 as a simple table

na(n)
01
12
22
36
42
56
620
74
84
920
1070
1110
126
1310
1470
15252
1628
1712
1812
1928
20252
21924
2284
2328
2420
2528
2684
27924
283432
29264
3072
3140
3240
3372
34264
353432
3612870
37858
38198
3990
4070
4190
42198
43858
4412870
4548620
462860
47572
48220
49140
50140
51220
52572
532860
5448620
55184756
569724

[1,2,2,6,2,6,20,4,4,20,70,10,6,10,70,252,28,12,12,
 28,252,924,84,28,20,28,84,924,3432,264,72,40,40,
 72,264,3432,12870,858,198,90,70,90,198,858,12870,
 48620,2860,572,220,140,140,220,572,2860,48620,
 184756,9724]