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A158061
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a(1)=2, a(n+1) is the smallest prime > n^smallest digit of a(n).
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1
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2, 2, 5, 251, 5, 3137, 7, 823547, 67, 531457, 11, 13, 13, 17, 17, 17, 17, 19, 19, 23, 401, 2, 487, 279847, 577, 9765629, 677, 387420499, 2, 853, 27011, 2, 1031, 2, 1163, 37, 46663, 50671, 2, 1523, 41, 43, 74093, 2, 1949, 47, 4477457, 4879687, 5308417, 2
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OFFSET
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1,1
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LINKS
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EXAMPLE
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2, 2(>1=1^2), 5(>4=2^2), 251(>241=3^5), 5(>4=4^1), 3137(>3125=5^5), 7(>6=6^1).
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MATHEMATICA
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nxt[{n_, a_}]:={n+1, NextPrime[(n+1)^Min[IntegerDigits[a]]]}; Join[ {2}, NestList[ nxt, {1, 2}, 50][[All, 2]]] (* Harvey P. Dale, Nov 18 2021 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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