id:A105986 - OEIS Search Results

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Near-repdigit semiprimes with 5 as repeated digit.

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155, 355, 505, 515, 535, 545, 551, 553, 554, 559, 565, 655, 755, 955, 1555, 4555, 5155, 5255, 5455, 5515, 5545, 5554, 5585, 5755, 5855, 7555, 50555, 53555, 55355, 55551, 55553, 55558, 55559, 55565, 55585, 55595, 55655, 55855, 56555, 505555, 545555 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(2)=355 is a term because 355 is a semiprime and all digits are equal to 5 except one.`
	CROSSREFS	`Sequence in context: A112136 A119609 A063340 this_sequence A129640 A028382 A131960` `Adjacent sequences: A105983 A105984 A105985 this_sequence A105987 A105988 A105989`
	KEYWORD	`base,nonn`
	AUTHOR	`Shyam Sunder Gupta (guptass(AT)rediffmail.com), Apr 29 2005`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research