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 A023088 Numbers k such that k and 4*k are anagrams. 10
 0, 1782, 2178, 16782, 17604, 17802, 17820, 17832, 17982, 18027, 19728, 19782, 20178, 21678, 21780, 21783, 21798, 21978, 23958, 102564, 103845, 104769, 104895, 105264, 106254, 114528, 125406, 125604, 126054, 128052, 128205, 140256, 140526, 142857 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS All terms are divisible by 3. - Eric M. Schmidt, Jul 12 2014 LINKS David W. Wilson, Table of n, a(n) for n = 1..10001 MATHEMATICA si[n_] := Sort@ IntegerDigits@ n; Flatten@{0, Table[Select[Range[10^d + 2, 3 10^d - 1, 3], si[#] == si[4 #] &], {d, 0, 6}]} (* Giovanni Resta, Mar 20 2017, corrected by Philippe Guglielmetti, Jul 16 2018 *) Select[Range[0, 150000, 3], Sort[IntegerDigits[#]]==Sort[ IntegerDigits[ 4#]]&] (* Harvey P. Dale, Dec 23 2017 *) CROSSREFS Cf. A023086, A023087, A023089, A023090, A023091, A023092, A023093. Sequence in context: A187524 A253057 A204637 * A251086 A255157 A175693 Adjacent sequences: A023085 A023086 A023087 * A023089 A023090 A023091 KEYWORD nonn,base AUTHOR STATUS approved

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Last modified January 28 22:08 EST 2023. Contains 359905 sequences. (Running on oeis4.)