id:A106656 - OEIS Search Results

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Smallest semiprime ending in exactly n 1's.

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21, 411, 111, 1111, 11111, 2111111, 1111111, 211111111, 2111111111, 21111111111, 11111111111, 4111111111111, 121111111111111, 511111111111111, 2111111111111111, 81111111111111111, 11111111111111111 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(2)=411 is a term because 411 is the smallest semiprime ending in exactly two 1's.`
	CROSSREFS	`Sequence in context: A113363 A014903 A020534 this_sequence A083043 A097833 A064108` `Adjacent sequences: A106653 A106654 A106655 this_sequence A106657 A106658 A106659`
	KEYWORD	`base,nonn`
	AUTHOR	`Shyam Sunder Gupta (guptass(AT)rediffmail.com), May 12 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research