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Search: id:A065759
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| A065759 |
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For a number n of length l, let f(n) be the sum of the products of the first i digits of x multiplied by the last l-i digits, for i from 1 to l-1, e.g. f(1234) = 1*234 + 12*34 + 123*4 = 1134. Sequence gives n such that f(n) = n. |
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+0
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| 655, 1461, 1642, 2361, 3442, 6550, 14610, 16420, 23610, 34420, 65500, 146100, 164200, 236100, 344200, 655000, 1461000, 1642000, 2361000, 3442000, 6550000, 14610000, 16420000, 23610000, 34420000, 65500000, 146100000, 164200000
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Are there any terms > 3442 which are not just a previous term followed by zeros?
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EXAMPLE
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n = 655 is in the sequence because f(655) = 65*5 + 6*55 = 325 + 330 = 655.
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CROSSREFS
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Adjacent sequences: A065756 A065757 A065758 this_sequence A065760 A065761 A065762
Sequence in context: A145125 A145202 A060520 this_sequence A088894 A015277 A135418
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KEYWORD
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base,nonn
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AUTHOR
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Jonathan Ayres (jonathan.ayres(AT)btinternet.com), Nov 17 2001
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