id:A061581 - OEIS Search Results

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a(1) = 1, a(n)= number obtained by replacing each digit of a(n-1) by its double.

+0
11

1, 2, 4, 8, 16, 212, 424, 848, 16816, 21216212, 424212424, 848424848, 1681684816816, 212162121681621216212, 42421242421216212424212424, 848424848424212424848424848, 16816848168168484248481681684816816 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`The term after 16 is 2-12, i.e. 212.`
	CROSSREFS	`Cf. A061581-A061587.` `Sequence in context: A013174 A098204 A095197 this_sequence A046251 A068806 A080281` `Adjacent sequences: A061578 A061579 A061580 this_sequence A061582 A061583 A061584`
	KEYWORD	`nonn,base,easy`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 13 2001`
	EXTENSIONS	`More terms from Larry Reeves (larryr(AT)acm.org) and Asher Natan Auel (auela(AT)reed.edu), May 15 2001`

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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