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A094879 Where 1's occur in A094830 (nonprimes that reach a prime in one step under iteration of "x -> x + sum of squares of digits of x"). +0
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1, 10, 12, 14, 15, 16, 18, 34, 57, 74, 75, 78, 91, 94, 100, 102, 105, 108, 121, 122, 123, 126, 128, 140, 142, 146, 148, 160, 161, 165, 166, 168, 182, 183, 188, 213, 216, 217, 234, 275, 297, 301, 324, 327, 341, 387, 412, 413, 415, 418, 432, 450, 453, 455, 458 (list; graph; listen)
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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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