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A072723
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Integers which are exactly the concatenation of the first m odd numbers (A019519) divided by their sum (A000290 = m^2).
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3
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OFFSET
| 1,2
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COMMENTS
| A probability argument suggests that this sequence may be finite.
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EXAMPLE
| a(1) = 1/1 = 1; a(2) = 135/(1+3+5) = 15; a(3) = 1357911131517/(1+3+5+7+9+11+13+15+17) = 16764334957; a(4) = 1357911131517192123252729313335373941/(1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41) = 3079163563531047898532266016633501.
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CROSSREFS
| Cf. A067122, A072724, A072725.
Sequence in context: A013874 A068252 A115242 * A111413 A181029 A072838
Adjacent sequences: A072720 A072721 A072722 * A072724 A072725 A072726
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KEYWORD
| base,nonn
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AUTHOR
| Henry Bottomley (se16(AT)btinternet.com), Jul 06 2002
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