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 A034055 Numbers with multiplicative digital root value 8. 17
 8, 18, 24, 29, 36, 38, 42, 46, 49, 63, 64, 66, 67, 76, 77, 79, 81, 83, 88, 92, 94, 97, 99, 118, 124, 129, 136, 138, 142, 146, 149, 163, 164, 166, 167, 176, 177, 179, 181, 183, 188, 192, 194, 197, 199, 214, 219, 222, 226, 229, 233, 234, 236, 237, 241, 243, 248 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..57. Eric Weisstein's World of Mathematics, Multiplicative Digital Root Index entries for 10-automatic sequences. MATHEMATICA dr8Q[n_]:=NestWhile[Times@@IntegerDigits[#]&, n, #>9&]==8; Select[ Range[ 250], dr8Q] (* Harvey P. Dale, Jun 10 2011 *) CROSSREFS Cf. A031347. Cf. A034048, A002275, A034049, A034050, A034051, A034052, A034053, A034054, A034055, A034056 (numbers having multiplicative digital roots 0-9). Sequence in context: A242185 A273527 A051810 * A043101 A171607 A039278 Adjacent sequences: A034052 A034053 A034054 * A034056 A034057 A034058 KEYWORD nonn,base,easy AUTHOR Patrick De Geest, Sep 15 1998 STATUS approved

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Last modified September 15 13:23 EDT 2024. Contains 375938 sequences. (Running on oeis4.)