id:A080805 - OEIS Search Results

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Numbers n such that A072475(n) divides A071221(n).

+0
6

1, 4, 5, 6, 8, 19, 20, 21, 23, 27, 28, 35, 48, 50, 53, 59, 79, 83, 86, 91, 113, 127, 133, 143, 148, 153, 158, 164, 177, 180, 181, 186, 188, 189, 191, 193, 198, 207, 213, 219, 220, 225, 227, 233, 235, 237, 241, 254, 258, 260, 265, 274, 276, 277, 296, 297, 306 (list; graph; listen)

	OFFSET	`1,2`
	PROGRAM	`(PARI) k=3:for(n=1, 500, p=1:s=0:for(i=1, n, while(isprime(k), k=k+1):p=p*k:s=s+k:k=k+1):if(p%s==0, print1(n", ")))`
	CROSSREFS	`Sequence in context: A115838 A105829 A006756 this_sequence A086726 A078885 A049466` `Adjacent sequences: A080802 A080803 A080804 this_sequence A080806 A080807 A080808`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan (ralf(AT)ark.in-berlin.de), Mar 24 2003`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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