A160700 - OEIS

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A160700

a(n) = if n<16 then n else a(floor(n/16)) XOR (n mod 16).

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14, 2, 3, 0, 1, 6, 7, 4, 5, 10, 11, 8, 9, 14, 15, 12, 13, 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12, 4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11, 5, 4, 7, 6, 1, 0, 3, 2, 13 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`A very simple hash function for the nonnegative integers.` `a(A000079(n))=A133145(n); a(A000302(n))=A010685(n); a(A001025(n))=A161452(n); a(A161440(n))=0; a(A161441(n))=1; a(A161442(n))=2; a(A161443(n))=3; a(A161444(n))=4; a(A161445(n))=5; a(A161446(n))=6; a(A161447(n))=7; a(A161448(n))=8; a(A161449(n))=9; a(A161450(n))=10; a(A161451(n))=11; a(A161452(n))=12; a(A161453(n))=13; a(A161454(n))=14; a(A161455(n))=15. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 10 2009]`
	LINKS	`R. Zumkeller, Table of n, a(n) for n = 0..10000`
	CROSSREFS	`Sequence in context: A124196 A139179 A130909 * A002377 A053836 A025483` `Adjacent sequences: A160697 A160698 A160699 * A160701 A160702 A160703`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jun 01 2009`

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Last modified February 16 17:48 EST 2012. Contains 205939 sequences.