A047738 - OEIS

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A047738

Earliest sequence of 4 consecutive economical numbers.

179210312, 179210313, 179210314, 179210315 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..4.` `Tanya Khovanova, Non Recursions`
	EXAMPLE	`179210312 = 2^3* 4733^2; 9 digits in 179219312, 7 digits in its prime factorization, 7 < 9, so that number is economical.`
	CROSSREFS	`Cf. A046759.` `Sequence in context: A213966 A206520 A127955 * A079323 A204529 A211239` `Adjacent sequences: A047735 A047736 A047737 * A047739 A047740 A047741`
	KEYWORD	`fini,full,nonn,base`
	AUTHOR	`Carlos B. Rivera (crivera(AT)primepuzzles.net)`
	STATUS	`approved`

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Last modified May 20 04:51 EDT 2013. Contains 225448 sequences.