id:A081030 - OEIS Search Results

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a(n) = largest k such that (sum of digits of k^n) >= n.

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9, 17, 27, 36, 46, 64, 68, 74, 88, 117, 123, 138, 146, 154, 199, 204, 216, 232, 232, 242, 259, 256, 284, 323, 337, 344, 341, 357, 358, 396, 443, 393, 423, 465, 477, 484, 519, 521, 533, 518, 569, 597, 591, 626, 638, 682, 666, 667, 695, 712, 698, 739, 746, 784 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(2) = 17. We have 17^2 = 289 and 2+8+9 >= 17. No number > 17 has this property.`
	CROSSREFS	`Cf. A055568, A055569, A055570, A055571, A055572.` `Sequence in context: A056233 A126623 A109333 this_sequence A147459 A014004 A090994` `Adjacent sequences: A081027 A081028 A081029 this_sequence A081031 A081032 A081033`
	KEYWORD	`base,nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net), Mar 02 2003`

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

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