id:A098175 - OEIS Search Results

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Smallest power of n with initial digit = 1 in decimal representation.

+0
3

1, 16, 19683, 16, 125, 1296, 16807, 16777216, 1853020188851841, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 160000, 194481, 10648, 12167, 13824, 15625, 17576, 19683, 17210368, 17249876309, 19683000000000 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A000030(a(n)) = 1; a(n) = n^A098174(n).`
	MATHEMATICA	`f[n_] := Block[{k = 1}, While[IntegerDigits[n^k][[1]] != 1, k++ ]; n^k]; Table[ f[n], {n, 30}] (from Robert G. Wilson v Sep 01 2004)`
	CROSSREFS	`Sequence in context: A017188 A013831 A159387 this_sequence A089232 A002489 A060205` `Adjacent sequences: A098172 A098173 A098174 this_sequence A098176 A098177 A098178`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 30 2004`

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

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