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A163920 as a simple table

na(n)
11
20
312
49
530
60
756
860
9126
100
11132
12126
13182
140
15420
16316
17306
180
19380
20330
21798
220
23552
24888
25875
260
271296
28630
29870
300
31992
321536
331914
340
352100
361467
371406
380
392652
402360
411722
420
431892
441518
454860
460
472256
484872
493234
500
514488
522106
532862
540
555060

[1,0,12,9,30,0,56,60,126,0,132,126,182,0,420,316,
 306,0,380,330,798,0,552,888,875,0,1296,630,870,0,
 992,1536,1914,0,2100,1467,1406,0,2652,2360,1722,0,
 1892,1518,4860,0,2256,4872,3234,0,4488,2106,2862,
 0,5060]