A135411 - OEIS

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A135411

Numbers n with property that for each single digit d of n, we can also see the decimal expansion of d+2 as a substring of n.

113579, 113597, 113759, 113795, 113957, 113975, 115379, 115397, 115739, 115793, 115937, 115973, 117359, 117395, 117539, 117593, 117935, 117953, 119357, 119375, 119537, 119573, 119735, 119753, 311579, 311597, 311759, 311795, 311957, 311975 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`There are exactly 120 six-digit such integers.` `These include 24 primes: 113759, 113957, 115793, 117539, 311957, 351179, 375119, 511793, 531197, 539711, 573119, 579113, 579311, 591137, 593711, 711539, 739511, 751139, 751193, 759113, 793511, 911357, 937511, 971153;` `and 36 semiprimes: 113579, 115397, 115937, 117953, 119537, 119573, 119753, 311579, 311759, 359117, 375911, 379511, 391157, 395711, 397115, 511379, 511397, 511739, 539117, 571139, 593117, 711593, 731195, 753119, 753911, 791135, 911573, 931157, 935117, 935711, 937115, 951137, 957113, 957311, 975113, 975311.`
	CROSSREFS	`Cf. A134439, A134692, A134948, A135015, A135016, A135463, A135495.` `Sequence in context: A172692 A172648 A066790 * A108387 A112009 A034633` `Adjacent sequences: A135408 A135409 A135410 * A135412 A135413 A135414`
	KEYWORD	`base,nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Feb 17 2008`

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Last modified February 14 08:06 EST 2012. Contains 205604 sequences.