id:A075033 - OEIS Search Results

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Numbers n such that tau(n) <= tau(n+1) <= tau(n+2) <= tau(n+3) where tau(n) = number of divisors of n.

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4

1, 13, 25, 33, 37, 61, 73, 85, 93, 97, 121, 133, 141, 145, 157, 187, 193, 201, 205, 213, 217, 229, 241, 242, 243, 253, 277, 283, 301, 361, 373, 393, 397, 421, 427, 445, 453, 457, 481, 537, 541, 547, 603, 613, 633, 661, 662, 663, 697, 723, 733, 745, 757, 781 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A075032, A075034, A075035.` `Sequence in context: A018948 A032478 A161603 this_sequence A017533 A026058 A032697` `Adjacent sequences: A075030 A075031 A075032 this_sequence A075034 A075035 A075036`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 02 2002`
	EXTENSIONS	`Added missing term and a(11)-a(54) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Jun 15 2009`

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.

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