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Search: id:A126633
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| A126633 |
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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, at least one of digits 5,6 and at least one of digits 7,8,9. |
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+0
2
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| 10, 94, 832, 6946, 54880, 412714, 2975752, 20722306, 140285200, 928323034, 6031661272, 38617025266, 244322679520, 1531014308554, 9519483716392, 58816232361826, 361524350929840, 2212804949145274, 13497228660885112
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Milan Janjic, Enumerative Formulas for Some Functions on Finite Sets
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FORMULA
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a(n)=24*6^n-60*5^n+62*4^n-33*3^n+9*2^n-1
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EXAMPLE
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a(8)=20722306
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MAPLE
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f:=n->24*6^n-60*5^n+62*4^n-33*3^n+9*2^n-1;
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CROSSREFS
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Cf. A125630, A125948, A125947, A125946, A125945, A125910, A125909, A125908, A125880, A125897, A125904, A125858.
Sequence in context: A099295 A167589 A050793 this_sequence A125422 A163738 A125945
Adjacent sequences: A126630 A126631 A126632 this_sequence A126634 A126635 A126636
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KEYWORD
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nonn
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AUTHOR
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Aleksandar M. Janjic and Milan R. Janjic (agnus(AT)blic.net), Feb 08 2007
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