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 A146561 Numbers m with the property that shifting the rightmost digit of m to the left end multiplies the number by 3. 8
 1034482758620689655172413793, 1379310344827586206896551724, 1724137931034482758620689655, 2068965517241379310344827586, 2413793103448275862068965517, 2758620689655172413793103448, 3103448275862068965517241379, 10344827586206896551724137931034482758620689655172413793 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Seiichi Manyama, Table of n, a(n) for n = 1..245 Wikipedia, Parasitic number. FORMULA From Seiichi Manyama, Aug 22 2017: (Start) a(7*k - 6) = 3*(10^(28*k) - 1)/29. a(7*k - 5) = 4*(10^(28*k) - 1)/29. a(7*k - 4) = 5*(10^(28*k) - 1)/29. a(7*k - 3) = 6*(10^(28*k) - 1)/29. a(7*k - 2) = 7*(10^(28*k) - 1)/29. a(7*k - 1) = 8*(10^(28*k) - 1)/29. a(7*k)     = 9*(10^(28*k) - 1)/29. (End) CROSSREFS Cf. A146088 (k=2), this sequence (k=3), A146569 (k=4), A146754 (k=5), A291354 (k=6), A291215 (k=7), A291321 (k=8), A291353 (k=9). Cf. A092697, A097717. Sequence in context: A053776 A217413 A217428 * A181309 A095448 A105298 Adjacent sequences:  A146558 A146559 A146560 * A146562 A146563 A146564 KEYWORD nonn,base,easy AUTHOR N. J. A. Sloane, based on correspondence from William A. Hoffman III (whoff(AT)robill.com), Apr 10 2009 EXTENSIONS More terms from Seiichi Manyama, Aug 22 2017 STATUS approved

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