id:A053317 - OEIS Search Results

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a(n) contains n digits (either '2' or '5') and is divisible by 2^n.

+0
2

2, 52, 552, 5552, 55552, 255552, 5255552, 55255552, 255255552, 2255255552, 22255255552, 222255255552, 5222255255552, 55222255255552, 255222255255552, 2255222255255552, 22255222255255552, 222255222255255552 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=a(n-1)+10^(n-1)(2+3[a(n-1)/2^(n-1) mod 2]) i.e. a(n) ends`
	CROSSREFS	`Cf. A023398, A050621, A050622, A035014, A055880.` `Sequence in context: A053455 A080921 A034311 this_sequence A123803 A101930 A099882` `Adjacent sequences: A053314 A053315 A053316 this_sequence A053318 A053319 A053320`
	KEYWORD	`base,nonn`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Mar 06 2000`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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