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A128290 If p(x) is the product of the digits of the number x and s(x) the sum of the digits then the sequence lists all the numbers n for which p[s(n)]=s[p(n)], with n>=1. +0
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1, 2, 3, 4, 5, 6, 7, 8, 9, 22, 36, 63, 109, 123, 132, 158, 185, 190, 199, 208, 213, 231, 280, 289, 298, 307, 312, 321, 333, 370, 406, 458, 460, 469, 485, 496, 505, 518, 548, 550, 556, 559, 565, 581, 584, 595, 604, 640, 649, 655, 667, 676, 694, 703, 730, 766, 802 (list; graph; listen)
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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.


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