id:A038756 - OEIS Search Results

Search: id:A038756

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

+0
3

2, 3, 9, 5, 81, 7, 729, 10, 27, 6561, 12, 177147, 14, 1594323, 16, 14348907, 18, 129140163, 20, 1162261467, 22, 10460353203, 24, 94143178827, 26, 847288609443, 19683, 29, 22876792454961, 31, 205891132094649, 33, 1853020188851841, 35 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Index entries for sequences of the a(a(n)) = 2n family`
	EXAMPLE	`a(7)=a(a(6))=3^6=729`
	CROSSREFS	`Cf. A038755, A038757.` `Sequence in context: A120725 A109607 A127612 this_sequence A011164 A082234 A011028` `Adjacent sequences: A038753 A038754 A038755 this_sequence A038757 A038758 A038759`
	KEYWORD	`nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), May 03 2000`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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