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A046437 7 steps needed to reach a prime under "Sum of digits raised to its digits' powers" procedure. 1

%I #7 Oct 27 2019 00:30:54

%S 29,92,156,165,234,243,268,286,288,324,342,423,432,506,516,560,561,

%T 605,615,628,650,651,682,688,826,828,862,868,882,886,1035,1049,1053,

%U 1094,1135,1149,1153,1194,1256,1265,1305,1315,1350,1351,1409,1419,1447,1455

%N 7 steps needed to reach a prime under "Sum of digits raised to its digits' powers" procedure.

%Y Cf. A046431.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Jul 15 1998

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Last modified April 14 04:54 EDT 2024. Contains 371655 sequences. (Running on oeis4.)