id:A061505 - OEIS Search Results

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Leading digit of n^n.

+0
3

1, 4, 2, 2, 3, 4, 8, 1, 3, 1, 2, 8, 3, 1, 4, 1, 8, 3, 1, 1, 5, 3, 2, 1, 8, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 5, 6, 8, 1, 1, 2, 3, 5, 7, 1, 1, 3, 4, 8, 1, 2, 3, 6, 1, 2, 4, 7, 1, 2, 5, 1, 2, 4, 8, 1, 3, 8, 1, 3, 8, 1, 4, 1, 2, 5, 1, 3, 7, 1, 4, 1, 2, 7, 1, 5, 1, 3, 1, 2, 7, 2, 5, 1 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`Using the formula in A000030: a(n) = [n^n / 10^([log_10(n^n)])] = [n^n / 10^([n*log_10(n)])]`
	EXAMPLE	`a(7) = 8, as 7^7 = 823543.`
	MATHEMATICA	`a = {}; Do[ a = Append[ a, IntegerDigits[ n^n ] [ [ 1 ] ] ], {n, 1, 75 } ]; a`
	CROSSREFS	`Sequence in context: A112349 A062072 A140395 this_sequence A053879 A141035 A100854` `Adjacent sequences: A061502 A061503 A061504 this_sequence A061506 A061507 A061508`
	KEYWORD	`base,nonn,easy`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 06 2001`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), May 10 2001. Further terms from Asher Auel (asher.auel(AT)reed.edu), May 20 2001.`

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Last modified November 25 14:45 EST 2009. Contains 167481 sequences.

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