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A205976 as a simple table

na(n)
01
14
212
332
484
5120
6384
752
81260
91768
103960
114272
1216128
1313048
144524
1558560
16122388
17114984
18403104
19334480
201136520
21175136
222550384
232751072
2411128320
259303100
2620394024
2731426880
288898708
2961707480
30239627520
31172322432
32548933868
33676718976
341231823592

[1,4,12,32,84,120,384,52,1260,1768,3960,4272,
 16128,13048,4524,58560,122388,114984,403104,
 334480,1136520,175136,2550384,2751072,11128320,
 9303100,20394024,31426880,8898708,61707480,
 239627520,172322432,548933868,676718976,
 1231823592]