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A049374 as a simple table

na(n)
11
26
31
442
518
61
7336
8276
936
101
113024
124200
13960
1460
151
1630240
1766024
1823400
192460
2090
211
22332640
231086624
24557424
2587360
265250
27126
281
293991680
3018805248
3113349952
322916144
33255360
349912
35168
361
3751891840
38342486144
39325854144
4095001984

[1,6,1,42,18,1,336,276,36,1,3024,4200,960,60,1,
 30240,66024,23400,2460,90,1,332640,1086624,557424,
 87360,5250,126,1,3991680,18805248,13349952,
 2916144,255360,9912,168,1,51891840,342486144,
 325854144,95001984]