A048947 - OEIS

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A048947

Let b(n) be the terms of A046528. Then sigma(b(n))=2^(a(n)), where sigma(n) is the sum of divisors function.

0, 2, 3, 5, 5, 7, 7, 8, 9, 10, 10, 12, 12, 13, 14, 15, 15, 16, 17, 17, 18, 18, 19, 19, 20, 20, 20, 21, 21, 22, 22, 22, 22, 23, 23, 24, 24, 24, 24, 25, 25, 25, 26, 26, 26, 27, 27, 27, 27, 28, 28, 29, 29, 29, 29, 30, 30, 31, 31, 31, 31, 32, 32, 32, 33, 33, 33, 34, 34, 34, 34, 35 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Cf. A048528.` `Sequence in context: A154290 A002334 A115732 * A114519 A126762 A082048` `Adjacent sequences: A048944 A048945 A048946 * A048948 A048949 A048950`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`
	EXTENSIONS	`Definition edited by Daniel Forgues (squid(AT)zensearch.com), Nov 07 2009`

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Last modified February 16 09:27 EST 2012. Contains 205904 sequences.