A083926 - OEIS

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A083926

Inverse function of N -> N injection A072795.

0, 0, 1, 0, 2, 3, 0, 0, 0, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,5`
	COMMENTS	`a(1)=0 because A072795(0)=1, but a(n) = 0 also for those n which do not occur as values of A072795. All positive natural numbers occur here once.`
	FORMULA	`a(n) = A083924(n)*A072772(n)`
	CROSSREFS	`a(A072795(n)) = n for all n. Cf. A083925, A083927-A083929, A083935.` `Sequence in context: A102037 A152857 A097946 * A024466 A021817 A069585` `Adjacent sequences: A083923 A083924 A083925 * A083927 A083928 A083929`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (MyFirstname.MySurname(AT)iki.fi) May 13 2003`

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Last modified February 16 15:27 EST 2012. Contains 205930 sequences.