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A303943 as a simple table

na(n)
01
11
22
38
476
51540
653684
72812148
8205054036
919805016628
102444724910292
11375282530128052
1270102075181928148
1315655136160745164340
144118456236678107528404
151260512820941791994429876
16444069171743010266366969044
17178408825363590577961830752052

[1,1,2,8,76,1540,53684,2812148,205054036,
 19805016628,2444724910292,375282530128052,
 70102075181928148,15655136160745164340,
 4118456236678107528404,1260512820941791994429876,
 444069171743010266366969044,
 178408825363590577961830752052]