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A058541 Trajectory of 1 under map that sends x to 3x - sigma(x). 3

%I

%S 1,2,3,5,9,14,18,15,21,31,61,121,230,258,246,234,156,76,88,84,28,28,

%T 28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,

%U 28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28,28

%N Trajectory of 1 under map that sends x to 3x - sigma(x).

%t NestList[3#-DivisorSigma[1,#]&,1,70] (* _Harvey P. Dale_, Jul 23 2012 *)

%Y Cf. A037159, A058542, A058545.

%K nonn

%O 0,2

%A _N. J. A. Sloane_, _Jud McCranie_, Dec 24 2000

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Last modified January 30 12:56 EST 2023. Contains 359945 sequences. (Running on oeis4.)