STATUS
reviewed
approved
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Revision History for A043888
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
Numbers k such that 0 and 3 occur juxtaposed in the base-5 representation of k but not of k+1.
(history; published version)
(history; published version)
STATUS
proposed
reviewed
STATUS
editing
proposed
CROSSREFS
Cf. A007091.
STATUS
proposed
editing
STATUS
editing
proposed
NAME
Numbers n k such that 0 and 3 occur juxtaposed in the base -5 representation of n k but not of nk+1.
STATUS
approved
editing
STATUS
editing
approved
MATHEMATICA
SequencePosition[Table[If[SequenceCount[IntegerDigits[n, 5], {0, 3}]>0 || SequenceCount[IntegerDigits[n, 5], {3, 0}]>0, 1, 0], {n, 700}], {1, 0}][[All, 1]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Mar 29 2020 *)
STATUS
approved
editing
AUTHOR
Clark Kimberling (ck6(AT)evansville.edu)
NAME
Numbers n such that 0 and 3 occur juxtaposed in the base 5 representation of n but not of n+1.
KEYWORD
nonn,base,new