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A334322 as a simple table

na(n)
14
212
328
476
5204
6540
71404
83724
99748
1025772
1167940
12179068
13472580
141245620
153286308
168666956
1722861604
1860301764
19159063748
20419582396
211106796012
222919664716
237701735292
2420317148476
2553595401604
26141385319932
27372973583908
28983913216292
292595592842460

[4,12,28,76,204,540,1404,3724,9748,25772,67940,
 179068,472580,1245620,3286308,8666956,22861604,
 60301764,159063748,419582396,1106796012,
 2919664716,7701735292,20317148476,53595401604,
 141385319932,372973583908,983913216292,
 2595592842460]