A036688 - OEIS

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A036688

Number of distinct n-digit suffixes of base 10 squares not containing digit 0.

5, 18, 119, 698, 5449, 41735, 359207, 3085197, 27434602, 243921771 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	REFERENCES	`Amer. Math. Monthly, Vol. 5 (1898), p. 26, Problem 57; reprinted on p. 906 of Vol. 105 (1998).`
	EXAMPLE	`Any square ends with one of [ 0 ], 1, 4, 5, 6, 9, so a(1) = 5.` `a(3) = A000993(3) - a(2) - #{100,104,201,204,209,304,400,401,404,409,500,504,600,601,604,609,704,801,804,809,900,904} = 159 - 18 - 22 = 119, cf. A122986. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 21 2010]`
	CROSSREFS	`Cf. A036788.` `Sequence in context: A127756 A158455 A009442 * A009348 A009365 A140296` `Adjacent sequences: A036685 A036686 A036687 * A036689 A036690 A036691`
	KEYWORD	`base,nonn,nice`
	AUTHOR	`R. K. Guy (rkg(AT)cpsc.ucalgary.ca)`
	EXTENSIONS	`Explanation and more terms from David W. Wilson (davidwwilson(AT)comcast.net).`

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Last modified February 17 11:16 EST 2012. Contains 206011 sequences.