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A139786
a(n) = 7^n mod 6^n.
7
0, 1, 13, 127, 1105, 1255, 24337, 263671, 725953, 42823, 40610545, 163341463, 780593185, 5464152295, 51309760081, 45711664183, 2200721587585, 12583941205639, 3454291215793, 430419865184215, 3012939056289505, 10122098073837607, 92791637157241105, 517919756258420599
OFFSET
0,3
LINKS
CROSSREFS
Cf. k^n mod (k-1)^n: A002380 (k=3), A064629 (k=4), A138589 (k=5), A138649 (k=6), this sequence (k=7), A138973 (k=8), A139733 (k=9).
Sequence in context: A202662 A202122 A201086 * A016169 A125401 A089763
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 20 2008
STATUS
approved