id:A124117 - OEIS Search Results

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a(n) the smallest composite number of n+1 digits that becomes a prime by incrementing any one of the higher order digits.

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21, 129, 1003, 10681, 101829, 1020831, 10251129, 100780743, 1051460221, 10153541853 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(4)=10681 as 20681, 11681, 10781 and 10691 are prime`
	CROSSREFS	`Sequence in context: A053052 A002299 A041852 this_sequence A008384 A110400 A089369` `Adjacent sequences: A124114 A124115 A124116 this_sequence A124118 A124119 A124120`
	KEYWORD	`hard,nonn,base`
	AUTHOR	`Anton Vrba (antonvrba(AT)yahoo.com), Nov 28 2006`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.