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A356807 as a simple table

na(n)
13
27
312
424
546
689
7171
8330
9636
101226
112363
124555
138780
1416924
1532622
1662881
17121207
18233634
19450344
20868066
211673251
223225295
236216956
2411983568
2523099070
2644524889
2785824483
28165432010
29318880452
30614661834
311184798779
322283773075
334402114140
348485347828

[3,7,12,24,46,89,171,330,636,1226,2363,4555,8780,
 16924,32622,62881,121207,233634,450344,868066,
 1673251,3225295,6216956,11983568,23099070,
 44524889,85824483,165432010,318880452,614661834,
 1184798779,2283773075,4402114140,8485347828]