id:A125880 - 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 the digits 1,2 and at least one of the digits 3,4,5,6,7,8,9.

+0
18

10, 98, 946, 9026, 85330, 800738, 7463746, 69054146, 633214450, 5746812578, 51574432546, 457575310466, 4014480866770, 34850492651618, 299615359353346, 2553264555537986, 21587837904314290, 181256003521421858 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets`
	FORMULA	`a(n)=148^n-497^n+916^n-1055^n+774^n-353^n+9*2^n-1`
	EXAMPLE	`a(7)=7463746`
	MAPLE	`f:=n->148^n-497^n+916^n-1055^n+774^n-353^n+9*2^n-1;`
	CROSSREFS	`Cf. A125630.` `Sequence in context: A125945 A044642 A125946 this_sequence A125445 A007137 A135927` `Adjacent sequences: A125877 A125878 A125879 this_sequence A125881 A125882 A125883`
	KEYWORD	`nonn,base`
	AUTHOR	`Aleksandar M. Janjic and Milan R. Janjic (agnus(AT)blic.net), Feb 03 2007, Feb 13 2007`

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Last modified September 7 15:18 EDT 2008. Contains 143483 sequences.

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