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A084776 as a simple table

na(n)
01
14
212
336
4100
5300
6776
72412
86304
919036
1050952
11148896
12393452
131211444
143167004
159672772
1625295248
1776084796
18200590424
19608621376
201617201648
214908511140
2212658776540
2338907904188
24102775961200
25310485090044

[1,4,12,36,100,300,776,2412,6304,19036,50952,
 148896,393452,1211444,3167004,9672772,25295248,
 76084796,200590424,608621376,1617201648,
 4908511140,12658776540,38907904188,102775961200,
 310485090044]