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A233191 as a simple table

na(n)
01
10
22
34
412
516
676
7128
8386
9832
102368
115024
1213946
1331680
1482632
15193696
16498174
171182464
182993384
197213648
2018061074
2143832960
22109163384
23266217472
24660116398
251615451648
263995295112
279796774896
2824189684402
2959396496000
30146494223160
31360026507808

[1,0,2,4,12,16,76,128,386,832,2368,5024,13946,
 31680,82632,193696,498174,1182464,2993384,7213648,
 18061074,43832960,109163384,266217472,660116398,
 1615451648,3995295112,9796774896,24189684402,
 59396496000,146494223160,360026507808]