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A347866 as a simple table

na(n)
03
15
213
361
4421
54621
63233231
7333993639197596403
82156564411
95563815981553007
10200560490131
11401120980261
1239637878826194618534431695203503
136120210247735371623457932152919
146803741602666897883879
1512605609164720271524158527
16417378486395280242796047685872617741911685961999

[3,5,13,61,421,4621,3233231,333993639197596403,
 2156564411,5563815981553007,200560490131,
 401120980261,39637878826194618534431695203503,
 6120210247735371623457932152919,
 6803741602666897883879,12605609164720271524158527,
 417378486395280242796047685872617741911685961999]