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A247095
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Smallest number m such that A250030(m) = n.
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2
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8, 7, 6, 5, 13, 30, 29, 157, 317, 626, 3095, 6637, 26833, 145687, 461938, 1068037, 16007153, 54690697
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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FORMULA
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PROG
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(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a247095 = (+ 5) . fromJust . (`elemIndex` a250030_list)
(PARI) A008474(n)=my(f=factor(n)); sum(i=1, #f~, f[i, 1]+f[i, 2]);
a(n) = my(k=5); while(f(k) != n, k++); k; \\ Michel Marcus, Feb 05 2022
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CROSSREFS
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KEYWORD
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nonn,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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