A080543 - OEIS

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A080543

In binary representation: keep the first digit and rotate left the others twice.

1, 2, 3, 4, 5, 6, 7, 8, 12, 9, 13, 10, 14, 11, 15, 16, 20, 24, 28, 17, 21, 25, 29, 18, 22, 26, 30, 19, 23, 27, 31, 32, 36, 40, 44, 48, 52, 56, 60, 33, 37, 41, 45, 49, 53, 57, 61, 34, 38, 42, 46, 50, 54, 58, 62, 35, 39, 43, 47, 51, 55, 59, 63, 64, 68, 72, 76, 80, 84, 88, 92, 96 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`a(n) = A080541(A080541(n)); permutation of natural numbers with inverse = A080544: A080544(a(n))=a(A080544(n))=n.`
	LINKS	`Index entries for sequences that are permutations of the natural numbers`
	EXAMPLE	`a(20)=a('10100')='100001'=17; a(24)=a('11000')='10010'=18.`
	CROSSREFS	`Sequence in context: A008815 A200371 A118600 * A119797 A032972 A066418` `Adjacent sequences: A080540 A080541 A080542 * A080544 A080545 A080546`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 20 2003`

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Last modified February 16 02:30 EST 2012. Contains 205860 sequences.