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A128781 as a simple table

na(n)
31
44
52
610
712
820
93
1042
1135
1224
13112
1456
154
16108
17252
1884
1940
20360
21504
22120
235
24220
25990
26924
27165
2860
29880
302376
311584
32220
336
34390
352860
365148
372574
38286
3984
401820
418008
4210296
434004
44364
457
46630
476825
4820020
4919305
506006
51455
52112
533360
5421840
5545760

[1,4,2,10,12,20,3,42,35,24,112,56,4,108,252,84,40,
 360,504,120,5,220,990,924,165,60,880,2376,1584,
 220,6,390,2860,5148,2574,286,84,1820,8008,10296,
 4004,364,7,630,6825,20020,19305,6006,455,112,3360,
 21840,45760]