id:A077404 - OEIS Search Results

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Trajectory of n under the Reverse and Add! operation carried out in base 3 (presumably) does not reach a palindrome.

+0
4

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 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Base 3 analogue of A066059 (base 2), A075420 (base 4) and A023108 (base 10).`
	LINKS	`Index entries for sequences related to Reverse and Add!`
	PROGRAM	`(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;`
	CROSSREFS	`Cf. A023108, A066059, A075420, A077405.` `Sequence in context: A055628 A139643 A139957 this_sequence A139979 A146357 A023080` `Adjacent sequences: A077401 A077402 A077403 this_sequence A077405 A077406 A077407`
	KEYWORD	`base,nonn`
	AUTHOR	`Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 05 2002`

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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.

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