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A169767 as a simple table

na(n)
40
50
60
70
80
90
100
110
120
130
1416
150
160
170
18124
190
200
210
221404
230
240
250
2612824
270
280
290
30126696
310
320
330
341222368
350
360
370
3811930192
390
400
410
42115974192
430
440
450
461128943296
470
480
490
5010984783168
510
520
530
54106897187552
550
560
570
581040241749856

[0,0,0,0,0,0,0,0,0,0,16,0,0,0,124,0,0,0,1404,0,0,
 0,12824,0,0,0,126696,0,0,0,1222368,0,0,0,11930192,
 0,0,0,115974192,0,0,0,1128943296,0,0,0,
 10984783168,0,0,0,106897187552,0,0,0,
 1040241749856]