id:A125897 - 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 1,2,3 and at least one of the digits 4,5,6,7,8,9.

+0
17

10, 100, 994, 9796, 95650, 924820, 8845714, 83575396, 778945090, 7156197940, 64800104434, 578648865796, 5100362368930, 44424892053460, 382839350691154, 3268062540952996, 27665402010407170, 232490197792427380 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets`
	FORMULA	`a(n)=188^n-637^n+1116^n-1205^n+834^n-363^n+9*2^n-1`
	EXAMPLE	`a(5)=95650`
	MAPLE	`f:=n->188^n-637^n+1116^n-1205^n+834^n-363^n+9*2^n-1;`
	CROSSREFS	`Cf. A125630.` `Sequence in context: A136858 A125948 A121084 this_sequence A055992 A115814 A115798` `Adjacent sequences: A125894 A125895 A125896 this_sequence A125898 A125899 A125900`
	KEYWORD	`nonn,base`
	AUTHOR	`Aleksandar M. Janjic and Milan R. Janjic, (agnus(AT)blic.net), Feb 03 2007`

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

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