id:A121853 - OEIS Search Results

Search: id:A121853

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Cumulative product of A000120.

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1

1, 1, 1, 2, 2, 4, 8, 24, 24, 48, 96, 288, 576, 1728, 5184, 20736, 20736, 41472, 82944, 248832, 497664, 1492992, 4478976, 17915904, 35831808, 107495424, 322486272, 1289945088, 3869835264, 15479341056, 61917364224, 309586821120 (list; graph; listen)

	OFFSET	`0,4`
	COMMENT	`This sequence does not always have prime exponents decreasing (i.e., is not always a product of primorial numbers). The first exception is a(5932), which is divisible by 7^1214, but only 5^1213.`
	FORMULA	`a(n) = Product_{k=1}^n A000120(k).`
	CROSSREFS	`Cf. A000120, A002110, A025487.` `Sequence in context: A095335 A100396 A056630 this_sequence A064451 A032440 A145869` `Adjacent sequences: A121850 A121851 A121852 this_sequence A121854 A121855 A121856`
	KEYWORD	`nonn`
	AUTHOR	`Frank Adams-Watters (FrankTAW(AT)Netscape.net), Aug 30 2006`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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