A072725 - OEIS

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A072725

Integers which are exactly the concatenation of the first m numbers (A007908) divided by their sum (A000217 = m*(m+1)/2).

1, 4, 823 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`A probability argument suggests that this sequence may be finite.`
	EXAMPLE	`a(1) = 1/1 =1; a(2) = 12/(1+2) = 4; a(3) = 12345/(1+2+3+4+5).`
	CROSSREFS	`Cf. A067116, A072723, A072724.` `Sequence in context: A114766 A202685 A172893 * A176186 A113896 A159706` `Adjacent sequences: A072722 A072723 A072724 * A072726 A072727 A072728`
	KEYWORD	`base,nonn,bref`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Jul 06 2002`

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Last modified February 16 06:44 EST 2012. Contains 205864 sequences.