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A306506 as a simple table

na(n)
11
21
31
44
54
63
715
819
915
1010
1176
1299
1386
1467
1542
16455
17603
18544
19455
20358
21216
223186
234248
243934
253486
262921
272250
281320
2925487
3034115
3132079
3229296
3325487
3421514
3516296
369360
37229384
38307875
39292509
40272064
41245806
42214551
43179058
44133800
4575600

[1,1,1,4,4,3,15,19,15,10,76,99,86,67,42,455,603,
 544,455,358,216,3186,4248,3934,3486,2921,2250,
 1320,25487,34115,32079,29296,25487,21514,16296,
 9360,229384,307875,292509,272064,245806,214551,
 179058,133800,75600]