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A342836
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a(n) is the smallest prime factor of A342834(n).
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4
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7, 797, 3, 7, 37, 3023681, 43, 1249, 7, 3, 23, 11, 3, 19, 3, 13390093693131976661567, 193, 2069, 11, 41, 3, 71, 3, 996370591, 3, 101, 1123, 54367, 159469, 151, 29, 3, 7
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OFFSET
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1,1
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COMMENTS
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a(n) = A342834(n) for n = 1 and n = 2, no other solution is known.
a(34) <= 7944676315964871787139677901. a(35)..a(40) = 2089, 11, 3, 23, 3, 11. a(42)=3. - Chai Wah Wu, Mar 26 2021
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LINKS
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FORMULA
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EXAMPLE
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As A342834(5) = 7||97||997||9973||99991 = 797997997399991 = 37 * 951649 * 22663307, then a(5) = 37.
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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