A047738 - OEIS

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A047738

Earliest sequence of 4 consecutive economical numbers.

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

	OFFSET	`1,1`
	LINKS	`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: A093046 A206520 A127955 * A079323 A204529 A180464` `Adjacent sequences: A047735 A047736 A047737 * A047739 A047740 A047741`
	KEYWORD	`fini,full,nonn,base`
	AUTHOR	`Carlos B. Rivera (crivera(AT)primepuzzles.net)`

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.