id:A115746 - OEIS Search Results

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Product of the factorials of prime numbers, repetitions allowed.

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2, 4, 6, 8, 12, 16, 24, 32, 36, 48, 64, 72, 96, 120, 128, 144, 192, 216, 240, 256, 288, 384, 432, 480, 512, 576, 720, 768, 864, 960, 1024, 1152, 1296, 1440, 1536, 1728, 1920, 2048, 2304, 2592, 2880, 3072, 3456, 3840, 4096, 4320, 4608, 5040, 5184, 5760 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A109104! is a subsequence of this sequence. Also this sequence is a subsequence of A001013 and is not equal to A001013. 14! is the earliest term of A001013 which is greater than 1 and isn't in the present sequence. All numbers of the form 2^m*3^n where m is positive and n isn't greater than m are in the sequence. If p is prime and p+1 is in the sequence then p+1 is a term of the sequence A109104.`
	EXAMPLE	`5760=2!2!2!3!5! so 5760 is in the sequence.`
	CROSSREFS	`Cf. A001013, A109104.` `Sequence in context: A096850 A062847 A001013 this_sequence A025610 A131117 A081954` `Adjacent sequences: A115743 A115744 A115745 this_sequence A115747 A115748 A115749`
	KEYWORD	`nonn`
	AUTHOR	`Farideh Firoozbakht (mymontain(AT)yahoo.com), Feb 03 2006`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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