id:A062832 - OEIS Search Results

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Numbers n such that n and n+2 have same number of divisors.

+0
1

3, 5, 6, 8, 11, 17, 18, 29, 33, 40, 41, 50, 54, 55, 59, 71, 85, 91, 93, 101, 102, 107, 123, 128, 136, 137, 141, 143, 149, 152, 159, 179, 182, 183, 184, 185, 191, 197, 198, 201, 203, 213, 215, 217, 219, 227, 230, 235, 239, 242, 243, 246, 247, 248, 265, 269, 281 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The lesser member of every twin-prime pair occurs in this sequence. Hence A001359 is a subsequence. - T. D. Noe, Sep 17 2007`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000`
	PROGRAM	`(PARI) je=[]; for(n=1, 1000, a=numdiv(n); b=numdiv(n+2); if(a==b, je=concat(je, n))); je`
	CROSSREFS	`Sequence in context: A160734 A121501 A157017 this_sequence A089085 A033163 A039869` `Adjacent sequences: A062829 A062830 A062831 this_sequence A062833 A062834 A062835`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 20 2001`

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

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