id:A125909 - 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 digit 1, at least one of the digits 2,3 and at least one of digits 4,5,6,7,8,9.

+0
18

9, 79, 681, 5791, 48729, 405919, 3340521, 27094111, 216288249, 1699187359, 13147825161, 100334472031, 756309350169, 5639967562399, 41669245538601, 305413957523551, 2223312590034489, 16091187568891039, 115885120813664841 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets`
	FORMULA	`a(n)=127^n-366^n+555^n-504^n+273^n-82^n+1.`
	EXAMPLE	`a(8)=27094111`
	MAPLE	`f:=n->127^n-366^n+555^n-504^n+273^n-82^n+1;`
	CROSSREFS	`Cf. A125630.` `Sequence in context: A123918 A044577 A126632 this_sequence A125421 A163445 A083411` `Adjacent sequences: A125906 A125907 A125908 this_sequence A125910 A125911 A125912`
	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 25 08:46 EST 2009. Contains 167481 sequences.

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