id:A125945 - OEIS Search Results

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a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks at least one of digits 1,2, at least one of digits 3,4 and at least one of digits 5,6,7,8,9.

+0
18

10, 96, 892, 8076, 71500, 619236, 5241652, 43355436, 350740540, 2780210676, 21641505412, 165814383996, 1253254845580, 9362782430916, 69259450905172, 508062802935756, 3700662365318620, 26794126632247956, 193018363703408932 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets`
	FORMULA	`a(n)=207^n-606^n+855^n-704^n+343^n-92^n+1.`
	EXAMPLE	`a(8)=43355436`
	MAPLE	`f:=n->207^n-606^n+855^n-704^n+343^n-92^n+1;`
	CROSSREFS	`Cf. A125630.` `Sequence in context: A126633 A125422 A163738 this_sequence A044642 A125946 A158513` `Adjacent sequences: A125942 A125943 A125944 this_sequence A125946 A125947 A125948`
	KEYWORD	`nonn,base`
	AUTHOR	`Aleksandar M. Janjic and Milan R. Janjic, (agnus(AT)blic.net), Feb 04 2007`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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