A068343 - OEIS

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A068343

a(n) is a prime power and sum of all prime powers <= a(n) is A025475.

1, 2111, 43997, 69499 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	EXAMPLE	`For a(n) = 2111, 1+2+3+4+5+7+8+,..,+2111 = 323761 = 569^2.`
	CROSSREFS	`Cf. A000961, A025475.` `Sequence in context: A015293 A159812 A146895 * A046334 A046382 A168662` `Adjacent sequences: A068340 A068341 A068342 * A068344 A068345 A068346`
	KEYWORD	`nonn`
	AUTHOR	`Naohiro Nomoto (n_nomoto(AT)yabumi.com), Mar 08 2002`

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Last modified February 14 16:24 EST 2012. Contains 205635 sequences.