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Periodic, with period = 46. - Harvey P. Dale, Aug 24 2014
Table of n, a(n) for n=0..77.
PowerMod[Range[0, 100], 4, 46] (* Harvey P. Dale, Aug 24 2014 *)
Sequence in context: A185459 A228800 A230943 * A104910 A161441 A190741
Adjacent sequences: A070586 A070587 A070588 * A070590 A070591 A070592
N. J. A. Sloane, May 13 2002