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A030531 Value of 3^x - 2^x - 5 for the solutions of 3^x - 2^x == 5 (mod 7). 1
0, 14, 6300, 19166, 4766580, 14316134, 3485735820, 10458256046, 2541798719460, 7625463267254, 1853015893884540, 5559051976620926, 1350851442795085140, 4052554603263162374, 984770884591425188460, 2954312671366461609806 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

Emil Grosswald, Topics From the Theory of Numbers. 1966 p 65 problem 23

LINKS

Table of n, a(n) for n=1..16.

PROG

(PARI) f(n) = for(x=1, n, y=3^x-2^x-5; if(y%7==0, print1(y" ")))

CROSSREFS

Cf. A047243.

Sequence in context: A241326 A159372 A060856 * A206357 A147686 A048913

Adjacent sequences:  A030528 A030529 A030530 * A030532 A030533 A030534

KEYWORD

nonn

AUTHOR

Cino Hilliard, May 09 2003

STATUS

approved

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Last modified October 17 01:30 EDT 2018. Contains 316275 sequences. (Running on oeis4.)