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A252501 as a simple table

na(n)
01
11
23
31
410
510
61
721
863
935
101
1136
12216
13336
14126
151
1655
17550
181650
191650
20462
211
2278
231170
245720
2510725
267722
271716
281
29105
302205
3115925
3247775
3363063
3435035
356435
361
37136
383808
3938080
40166600
41346528
42346528
43155584
4424310

[1,1,3,1,10,10,1,21,63,35,1,36,216,336,126,1,55,
 550,1650,1650,462,1,78,1170,5720,10725,7722,1716,
 1,105,2205,15925,47775,63063,35035,6435,1,136,
 3808,38080,166600,346528,346528,155584,24310]