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A215408
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Smallest number whose home prime (cf. A037274) is the home prime of exactly n natural numbers.
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1
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2, 6, 4, 42, 10, 118, 250, 140, 4206, 3786, 41933, 1798, 722, 87066, 8691, 5978
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OFFSET
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1,1
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COMMENTS
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The home primes of the sequence are A118756.
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REFERENCES
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J. Heleen, Family Numbers: Constructing Primes By Prime Factor Splicing, J. Rec. Math. 28 (1996-97), 116-119.
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LINKS
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FORMULA
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EXAMPLE
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The home prime of the four numbers 42, 74, 237, and 379 is 379 (for example, 42 = 2*3*7 -> 237 = 3*79 -> 379 which is prime), so a(4) = 42.
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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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STATUS
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approved
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