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 A115589 Multiply first digit by k, append result to sequence; multiply 2nd digit by k, append result to sequence; multiply 3rd digit by k, append result to sequence, etc. a(1)=1, k=7 case. 0
 1, 7, 49, 28, 63, 14, 56, 42, 21, 7, 28, 35, 42, 28, 14, 14, 7, 49, 14, 56, 21, 35, 28, 14, 14, 56, 7, 28, 7, 28, 49, 28, 63, 7, 28, 35, 42, 14, 7, 21, 35, 14, 56, 7, 28, 7, 28, 35, 42, 49, 14, 56, 49, 14, 56, 28, 63, 14, 56, 42, 21, 49, 14, 56, 21, 35, 28, 14, 7, 28, 49, 14, 7, 21 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS All terms are evidently multiplies of 7: 7,14,...,63. Is sequence periodic? Some repeating patterns are obvious, e.g., 63,7,28,35,42, but no cycle appears. LINKS MATHEMATICA ss=s={1}; Do[d=7s[[i]]; AppendTo[ss, d]; s=Flatten[{s, IntegerDigits[d]}], {i, 200}]; ss CROSSREFS Cf. A115425. Sequence in context: A024092 A163713 A192897 * A014390 A043070 A083930 Adjacent sequences:  A115586 A115587 A115588 * A115590 A115591 A115592 KEYWORD nonn,base AUTHOR Zak Seidov, Mar 09 2006 STATUS approved

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