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A068783 Lesser of two consecutive numbers each divisible by a fifth power. 7
1215, 6560, 8991, 9375, 14336, 16767, 22112, 24543, 29888, 32319, 37664, 40095, 45440, 47871, 53216, 55647, 60992, 63423, 68768, 71199, 76544, 78975, 84320, 86751, 90624, 92096, 94527, 99872, 102303, 107648, 109375, 110079, 115424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[ Range[2, 250000], Max[ Transpose[ FactorInteger[ # ]] [[2]]] > 4 && Max[ Transpose[ FactorInteger[ # + 1]] [[2]]] > 4 &]

SequencePosition[Table[If[Max[FactorInteger[n][[All, 2]]]>4, 1, 0], {n, 120000}], {1, 1}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Dec 25 2018 *)

CROSSREFS

Cf. A068780, A068781, A068140, A068782, A068784, A068785.

Sequence in context: A252125 A251815 A130680 * A235889 A321062 A059287

Adjacent sequences:  A068780 A068781 A068782 * A068784 A068785 A068786

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Mar 04 2002

STATUS

approved

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Last modified November 12 19:33 EST 2019. Contains 329078 sequences. (Running on oeis4.)