id:A116064 - OEIS Search Results

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Powerful numbers (A001694) made of nontrivial runs of identical digits.

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7744, 665500, 774400, 5556600, 6655000, 7744000, 55566000, 66550000, 77440000, 447722888, 448855888, 555660000, 665500000, 774400000, 1155775544 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A run of length 1 is trivial.`
	LINKS	`Index entries for sequences related to powerful numbers`
	EXAMPLE	`448855888 = 2^413^3112^2.`
	CROSSREFS	`Cf. A001694, A033023.` `Sequence in context: A094400 A116282 A052050 this_sequence A052099 A052070 A079035` `Adjacent sequences: A116061 A116062 A116063 this_sequence A116065 A116066 A116067`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research