id:A061742 - OEIS Search Results

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Square of product of first n primes.

+0
10

1, 4, 36, 900, 44100, 5336100, 901800900, 260620460100, 94083986096100, 49770428644836900, 41856930490307832900, 40224510201185827416900, 55067354465423397733736100, 92568222856376731590410384100 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Squares of primorials (first definition).`
	EXAMPLE	`a(4) = 2^2 * 3^2 * 5^2 * 7^2 = 44100.`
	PROGRAM	`(PARI) for(n=0, 20, print(prod(k=1, n, prime(k)^2)))`
	CROSSREFS	`Equals A002110^2.` `Adjacent sequences: A061739 A061740 A061741 this_sequence A061743 A061744 A061745` `Sequence in context: A009446 A134052 A127901 this_sequence A136469 A120605 A143764`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jun 21 2001`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

AT&T Labs Research