

A046026


Smallest prime p dividing n#1, n#, or n#+1, n squarefree.


0



2, 2, 2, 3, 3, 3, 5, 7, 13, 7, 5, 17, 7, 7, 11, 23, 13, 5, 5, 5, 11, 17, 7, 23, 19, 13, 41, 7, 43, 23, 47, 17, 19, 11, 19, 29, 13, 17, 31, 13, 11, 67, 23, 7, 71, 53, 37, 11, 13, 29, 41, 83, 17, 43, 29, 89, 13, 31, 47, 19, 17, 101, 17, 103, 7, 53, 107, 109, 11, 37, 113, 19
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OFFSET

1,1


REFERENCES

Ashbacher, C. ``A Note on the Smarandache NearToPrimorial Function.'' {\it Smarandache Notions J.} {\bf 7}, 4649, 1996.
Mudge, M. R. ``The Smarandache NearToPrimorial Function.'' {\it Abstracts of Papers Presented to the Amer. Math. Soc.} {\bf 17}, 585, 1996.


LINKS

Table of n, a(n) for n=1..72.
Eric Weisstein's World of Mathematics, Smarandache NeartoPrimorial Function


FORMULA

Smallest prime p such that n divides one of p#1, p#, p#+1


CROSSREFS

Cf. A002110 (primorial numbers), A046027, A013929.
Sequence in context: A035449 A161555 A029058 * A139801 A132328 A064822
Adjacent sequences: A046023 A046024 A046025 * A046027 A046028 A046029


KEYWORD

nonn


AUTHOR

Eric W. Weisstein


STATUS

approved



