id:A140578 - OEIS Search Results

Search: id:A140578

Displaying 1-1 of 1 results found.

page 1

A positive integer n is included if n is the smallest integer in a run of a plural number of consecutive integers all with the same number of divisors.

+0
1

2, 14, 21, 26, 33, 38, 44, 57, 75, 85, 93, 98, 104, 116, 118, 122, 133, 135, 141, 145, 147, 158, 171, 177, 189, 201, 205, 213, 217, 230, 242, 253, 285, 296, 298, 301, 326, 332, 334, 344, 374, 381, 387, 393, 429, 434, 445, 453, 481, 501, 507, 514, 526, 537, 542 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`All terms of this sequence are included in sequence A005237.`
	LINKS	`Leroy Quet, Home Page (listed in lieu of email address)`
	EXAMPLE	`d(33) = d(34) = d(35), where d(n) is the number of divisors of n. And since d(32) does not equal d(33), d(33) is the first term of this run of similar values. So 33 is included in this sequence.`
	CROSSREFS	`Cf. A005237.` `Sequence in context: A131221 A138047 A005237 this_sequence A052213 A086263 A073143` `Adjacent sequences: A140575 A140576 A140577 this_sequence A140579 A140580 A140581`
	KEYWORD	`nonn`
	AUTHOR	`Leroy Quet Jul 05 2008`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 25 2009`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research