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A023075 k and 4k are anagrams in base 8 (written in base 8). 1
1024, 1042, 1463, 10024, 10042, 10204, 10240, 10346, 10402, 10420, 10634, 12245, 12425, 14063, 14306, 14367, 14603, 14630, 14637, 14763, 16347, 16743, 17024, 17042, 17463, 100024, 100042, 100204, 100240, 100346, 100402, 100420, 100634, 102004 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

filter:= proc(n)

  sort(convert(n, base, 8))=sort(convert(4*n, base, 8))

end proc:

g:= proc(n) local L; L:= convert(n, base, 8);

add(L[i]*10^(i-1), i=1..nops(L))

end proc:

map(g, select(filter, [seq(seq(i, i=8^j .. 2*8^j-1), j=1..5)])); # Robert Israel, Dec 25 2019

CROSSREFS

Sequence in context: A084912 A336780 A217850 * A084918 A235719 A057370

Adjacent sequences:  A023072 A023073 A023074 * A023076 A023077 A023078

KEYWORD

nonn,base

AUTHOR

David W. Wilson

STATUS

approved

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Last modified January 19 05:41 EST 2022. Contains 350464 sequences. (Running on oeis4.)