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A304285
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Sequence gives the odd denominators, in increasing values, of Egyptian fractions whose sum has the concatenation of these denominators as decimal part. Case a(1) = 3.
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18
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OFFSET
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1,1
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COMMENTS
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Similar to A302932 but here only odd denominators are used.
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LINKS
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EXAMPLE
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We start from 3 because 1/3 = 0.3333...
Then the next odd integer is 361 because 1/3 + 1/361 = 0.3361034... and so on.
The sum is 0.3 361 33377 18729544521131 ...
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MAPLE
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P:=proc(q) local a, b, d, n; a:=1/3; b:=1; d:=1/a; print(d);
for n from 1 by 2 to q do if trunc(evalf(a+1/n, 100)*10^(b+ilog10(n)+1))=d*10^(ilog10(n)+1)+n then b:=b+ilog10(n)+1; d:=d*10^(ilog10(n)+1)+n; a:=a+1/n; print(n); fi; od; end: P(10^20);
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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