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A111863 Smallest prime factor of 6*n-1 that is congruent to 5 modulo 6. 3
5, 11, 17, 23, 29, 5, 41, 47, 53, 59, 5, 71, 11, 83, 89, 5, 101, 107, 113, 17, 5, 131, 137, 11, 149, 5, 23, 167, 173, 179, 5, 191, 197, 29, 11, 5, 17, 227, 233, 239, 5, 251, 257, 263, 269, 5, 281, 41, 293, 23, 5, 311, 317, 17, 47, 5, 11, 347, 353, 359, 5, 53, 29, 383, 389, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

G. Polya and G. Szego, Problems and Theorems in Analysis I (Springer 1924, reprinted 1972), Part Eight, Chap. 2, Section 2, Problem 96.

LINKS

Table of n, a(n) for n=1..66.

CROSSREFS

Cf. A107745, A016969, A007528.

Sequence in context: A314241 A314242 A107745 * A043389 A277571 A000966

Adjacent sequences:  A111860 A111861 A111862 * A111864 A111865 A111866

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Aug 20 2005

STATUS

approved

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Last modified November 13 13:15 EST 2018. Contains 317149 sequences. (Running on oeis4.)