id:A080543 - OEIS Search Results

Search: id:A080543

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

+0
3

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; listen)

	OFFSET	`1,2`
	COMMENT	`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: A067133 A008815 A118600 this_sequence A119797 A032972 A066418` `Adjacent sequences: A080540 A080541 A080542 this_sequence A080544 A080545 A080546`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 20 2003`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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