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Table of n, a(n) for n=0..28.
(Sage) [power_mod(8, n, 3^n)for n in xrange(0, 29)] # [From Zerinvary Lajos, Nov 28 2009]
Sequence in context: A087452 A098878 A235031 * A089963 A012411 A012415
Adjacent sequences: A138952 A138953 A138954 * A138956 A138957 A138958
N. J. A. Sloane, May 20 2008