A034053 Numbers with multiplicative digital root value 6.

6, 16, 23, 28, 32, 44, 47, 48, 61, 68, 74, 82, 84, 86, 116, 123, 128, 132, 144, 147, 148, 161, 168, 174, 182, 184, 186, 213, 218, 224, 227, 228, 231, 238, 242, 244, 246, 264, 267, 272, 276, 281, 282, 283, 288, 289, 298, 312, 321, 328, 344, 347, 368, 374, 377

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Multiplicative Digital Root

Index entries for 10-automatic sequences.

Mathematica

mdr6Q[n_]:=NestWhile[Times@@IntegerDigits[#]&, n, #>9&]==6; Select[Range[400], mdr6Q] (* Harvey P. Dale, Jul 14 2024 *)

Crossrefs

Cf. A031347.

Cf. A034048, A002275, A034049, A034050, A034051, A034052, A034053, A034054, A034055, A034056 (numbers having multiplicative digital roots 0-9).

Sequence in context: A087446 A340497 A051808 * A199988 A114222 A348229

Adjacent sequences: A034050 A034051 A034052 * A034054 A034055 A034056

Keyword

nonn,base,easy,changed

Author

Patrick De Geest, Sep 15 1998

Status

approved