id:A125908 - 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 the digits 1 and 2 and at least one of digits 3,4,5,6,7,8,9.

+0
18

8, 64, 512, 4096, 32768, 262144, 2092112, 16595776, 130437728, 1013866624, 7788438512, 59145432256, 444357721088, 3306242197504, 24389881261712, 178578361769536, 1299058046034848, 9397253451942784, 67653687455953712 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets`
	FORMULA	`a(n)=77^n-216^n+355^n-354^n+213^n-72^n+1.`
	EXAMPLE	`a(8)=16595776`
	MAPLE	`f:=n->77^n-216^n+355^n-354^n+213^n-72^n+1;`
	CROSSREFS	`Cf. A125630.` `Sequence in context: A127426 A126629 A125498 this_sequence A001018 A097682 A050738` `Adjacent sequences: A125905 A125906 A125907 this_sequence A125909 A125910 A125911`
	KEYWORD	`nonn,base`
	AUTHOR	`Aleksandar M. Janjic and Milan R. Janjic, (agnus(AT)blic.net), Feb 04 2007`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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