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A078670
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Number of times n appears among the decimal digits of (n!)!.
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0
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OFFSET
| 1,4
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EXAMPLE
| a(4)=4 because 4 appears four times in (4!)! = 620448401733239439360000.
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PROG
| (PARI) {mdcp(d, n)=local(a, c=0, L); L=length(Str(d)); if(L>1, a=2, a=1); while(n>0, if(n%(10^a)==d, n=floor(n/10); c++, n=floor(n/10); )); c } for(n=1, 10, print1(mdcp(n, n!!)", "))
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CROSSREFS
| Cf. A000197.
Sequence in context: A179496 A107872 A008858 * A163948 A158108 A158258
Adjacent sequences: A078667 A078668 A078669 * A078671 A078672 A078673
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KEYWORD
| base,more,nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Dec 16 2002
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EXTENSIONS
| Added a(9) and a(10). - Ryan Leonel (ryan.leonel(AT)gmail.com), Oct 03 2008
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