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A176739 as a simple table

na(n)
01
10
22
34
44
516
624
748
8112
9192
10416
11832
121600
133328
146528
1513056
1626368
1752224
18104960
19209920
20418816
21839680
221677312
233354624
246713344
2513418496
2626845184
2753690368
28107364352
29214761472
30429490176
31858980352
321718026240
333435921408
346871973888

[1,0,2,4,4,16,24,48,112,192,416,832,1600,3328,
 6528,13056,26368,52224,104960,209920,418816,
 839680,1677312,3354624,6713344,13418496,26845184,
 53690368,107364352,214761472,429490176,858980352,
 1718026240,3435921408,6871973888]