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A077404
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Trajectory of n under the Reverse and Add! operation carried out in base 3 (presumably) does not reach a palindrome.
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3
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103, 127, 167, 176, 180, 183, 185, 191, 197, 200, 206, 207, 209, 215, 221, 230, 239, 291, 309, 318, 340, 358, 369, 376, 387, 394, 396, 413, 418, 431, 436, 449, 454, 467, 472, 582, 600, 618, 636, 655, 660, 673, 678, 691, 696, 709, 714, 746, 776, 803, 805
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refs;
listen;
history;
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internal format)
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OFFSET
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0,1
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COMMENTS
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Base 3 analogue of A066059 (base 2), A075420 (base 4) and A023108 (base 10).
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LINKS
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Table of n, a(n) for n=0..50.
Index entries for sequences related to Reverse and Add!
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PROG
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(ARIBAS) m := 900; stop := 1000; for n := 0 to m do c := 0; k := n; b := 1; while b do d := k; rev := 0; while d > 0 do rev := 3*rev + (d mod 3); d := d div 3; end; if k = rev or c = stop then b := 0; else k := k + rev; end; inc(c); end; if c > stop then write(n, ", "); end; end;
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CROSSREFS
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Cf. A023108, A066059, A075420, A077405.
Sequence in context: A055628 A139643 A139957 * A139979 A146357 A023080
Adjacent sequences: A077401 A077402 A077403 * A077405 A077406 A077407
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KEYWORD
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base,nonn
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AUTHOR
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Klaus Brockhaus, Nov 05 2002
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STATUS
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approved
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