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Table of n, a(n) for n=1..56.
205+phi(205)+sigma(205) = 617 (prime).
Cf. A078762, A068080.
Sequence in context: A188075 A121914 A110341 * A022265 A120389 A124150
Adjacent sequences: A116032 A116033 A116034 * A116036 A116037 A116038
Giovanni Resta, Feb 13 2006