id:A163329 - OEIS Search Results

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Inverse permutation of A163328.

+0
7

0, 1, 3, 2, 4, 7, 5, 8, 12, 6, 10, 15, 11, 16, 22, 17, 23, 30, 21, 28, 36, 29, 37, 46, 38, 47, 57, 9, 13, 18, 14, 19, 25, 20, 26, 33, 24, 31, 39, 32, 40, 49, 41, 50, 60, 48, 58, 69, 59, 70, 82, 71, 83, 96, 27, 34, 42, 35, 43, 52, 44, 53, 63, 51, 61, 72, 62, 73, 85, 74, 86, 99 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`A. Karttunen, Table of n, a(n) for n = 0..6560` `Index entries for sequences that are permutations of the natural numbers`
	FORMULA	`a(n) = A001477bi(A163325(n),A163326(n)), where A001477bi(x,y) = (((x+y)^2)+x+(3y))/2.`
	PROGRAM	`(Scheme:) (define (A163329 n) (A001477bi (A163325 n) (A163326 n)))` `(define (A001477bi x y) (/ (+ (expt (+ x y) 2) x (* 3 y)) 2))`
	CROSSREFS	`Inverse: A163328. a(n) = A163331(A163327(n)). A054239 is an analogous sequence for binary. Cf. A007089.` `Sequence in context: A123097 A134571 A054086 this_sequence A105025 A129594 A158441` `Adjacent sequences: A163326 A163327 A163328 this_sequence A163330 A163331 A163332`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Jul 29 2009`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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