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A154877 Numbers whose trajectory under iteration of sum of cubes of digits eventually turns out to follow the cyclic iteration of 160,217,352 +0
1
217, 220, 229, 235, 238, 253, 271, 283, 325, 352, 382, 388, 445, 454, 457 (list; graph; listen)
OFFSET

1,1

COMMENT

All the numbers are of the form 3n+1

EXAMPLE

Taking 79 as example; 7^3+9^3=1072, 1^3+0^3+7^3+2^3=352, 3^3+5^3+2^3=160, 1^3+6^3+0^3=217, 2^3+1^3+7^3=352

CROSSREFS

Sequence in context: A134370 A038661 A044877 this_sequence A102658 A145732 A038594

Adjacent sequences: A154874 A154875 A154876 this_sequence A154878 A154879 A154880

KEYWORD

nonn

AUTHOR

Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 16 2009

EXTENSIONS

Added further terms Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 20 2009

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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