id:A163234 - OEIS Search Results

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Inverse permutation of A163233.

+0
4

0, 1, 2, 4, 6, 3, 11, 7, 9, 13, 5, 8, 24, 18, 17, 12, 28, 21, 37, 29, 10, 15, 16, 22, 58, 48, 47, 38, 31, 39, 23, 30, 35, 43, 27, 34, 62, 52, 51, 42, 14, 19, 20, 26, 32, 25, 41, 33, 112, 98, 97, 84, 73, 85, 61, 72, 70, 59, 83, 71, 40, 49, 50, 60, 120, 105, 137, 121, 78 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`A. Karttunen, Table of n, a(n) for n = 0..4095` `Index entries for sequences that are permutations of the natural numbers`
	FORMULA	`a(n) = A001477bi(A006068(A059905(n)),A006068(A059906(n))), where A001477bi(x,y) = (((x+y)^2)+x+(3y))/2.`
	PROGRAM	`(Scheme:) (define (A163234 n) (A001477bi (A006068 (A059905 n)) (A006068 (A059906 n))))` `(define (A001477bi x y) (/ (+ (expt (+ x y) 2) x (* 3 y)) 2))`
	CROSSREFS	`Inverse: A163233. a(n) = A163236(A057300(n)). Cf. A163236.` `Sequence in context: A122280 A057063 A002849 this_sequence A072984 A018841 A138125` `Adjacent sequences: A163231 A163232 A163233 this_sequence A163235 A163236 A163237`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Jul 29 2009`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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