A054792 - OEIS

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A054792

Earliest sequence with a(a(n))=n^3.

0, 1, 3, 8, 5, 64, 7, 216, 27, 10, 729, 12, 1331, 14, 2197, 16, 3375, 18, 4913, 20, 6859, 22, 9261, 24, 12167, 26, 15625, 512, 29, 21952, 31, 27000, 33, 32768, 35, 39304, 37, 46656, 39, 54872, 41, 64000, 43, 74088, 45, 85184, 47, 97336, 49, 110592, 51 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..1000` `Index entries for sequences of the a(a(n)) = 2n family`
	FORMULA	`If n is a cube then a(n)=a(n^(1/3))^3, otherwise if the difference between n and the highest cube less than n is odd then a(n)=n+1, otherwise a(n)=(n-1)^3`
	CROSSREFS	`Sequence in context: A143753 A121164 A086872 * A144872 A090347 A125125` `Adjacent sequences: A054789 A054790 A054791 * A054793 A054794 A054795`
	KEYWORD	`nice,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Apr 27 2000`

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Last modified February 16 08:07 EST 2012. Contains 205887 sequences.