A118762 - OEIS

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A118762

First differences of A118757.

1, 1, 1, 1, 1, 1, 1, 1, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,10`
	COMMENTS	`a(10^k-1) = 10^k for 0<k<=3, but a(9999)=-1, a(9998)=10000;` `abs(a(n)) = 10^k not for all n: e.g. a(1155) = A118757(1156) - A118757(1155) = 1123 - 1121 = 2.`
	CROSSREFS	`Cf. A118768.` `Sequence in context: A068159 A108695 A105031 * A010178 A070596 A010177` `Adjacent sequences: A118759 A118760 A118761 * A118763 A118764 A118765`
	KEYWORD	`sign`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 01 2006`

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Last modified February 14 22:37 EST 2012. Contains 205679 sequences.