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A050767 Let f(m) = smallest composite number that takes m steps of "add prime factors to number" to reach a prime and g(m) be the prime that is reached. Sequence gives values of g(m), sorted and duplicates removed. 1
11, 23, 83, 149, 167, 251, 269, 881, 2039, 5021, 9311, 35111, 82219, 89809, 181421, 289099, 420899, 885839, 996157, 1963799, 2554439, 2843903, 3269039, 3632701, 4648519, 6448103, 9748579, 35200439, 71927183, 82216501, 283709077 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..30.

C. Rivera, See also related puzzle

EXAMPLE

23 is included as it is both g(2) (with f(2)=8) and g(3) (with f(3)=4): '8' + (2+2+2) => 14 + (2+7) => 23; '4' + (2+2) => 8 + (2+2+2) => 14 + (2+7) => 23.

CROSSREFS

Cf. A050703, A050710 (for f(n)).

Sequence in context: A241973 A158021 A239638 * A145918 A077707 A081981

Adjacent sequences:  A050764 A050765 A050766 * A050768 A050769 A050770

KEYWORD

nonn,nice

AUTHOR

Patrick De Geest, Sep 15 1999

STATUS

approved

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Last modified July 12 05:35 EDT 2020. Contains 335658 sequences. (Running on oeis4.)