id:A054774 - OEIS Search Results

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Numbers of the form 2^i*5^j where i+j is odd.

+0
2

2, 5, 8, 20, 32, 50, 80, 125, 128, 200, 320, 500, 512, 800, 1250, 1280, 2000, 2048, 3125, 3200, 5000, 5120, 8000, 8192, 12500, 12800, 20000, 20480, 31250, 32000, 32768, 50000, 51200, 78125, 80000, 81920, 125000, 128000, 131072, 200000 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`m is in the sequence iff m/10 is already in the sequence or m is an odd power of 2 or 5`
	CROSSREFS	`Cf. A003592, A004171, A013710.` `Sequence in context: A055614 A076870 A127281 this_sequence A104721 A139407 A107384` `Adjacent sequences: A054771 A054772 A054773 this_sequence A054775 A054776 A054777`
	KEYWORD	`easy,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), May 19 2000`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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