id:A077432 - OEIS Search Results

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Squares of the form u'v'w, where in decimal representation u=n^2, v=2*n^2 and w=n^2 possibly with a leading zero.

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121, 484, 91809, 163216, 255025, 367236, 499849, 64128064, 81162081, 100200100, 121242121, 144288144, 169338169, 196392196, 225450225, 256512256, 289578289, 324648324, 361722361, 400800400, 441882441, 484968484, 52910580529 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = A077431(n)^2.`
	FORMULA	`(n(1+10^(1+floor(Log10(2n^2)))))^2.`
	EXAMPLE	`n=42, n^2=1764 and 2*n^2=3528: a(42) = 1764'3528'1764 = 420042^2 = A077431(42)^2.`
	CROSSREFS	`Cf. A004216, A077430.` `Sequence in context: A062555 A017390 A110722 this_sequence A017654 A036306 A014749` `Adjacent sequences: A077429 A077430 A077431 this_sequence A077433 A077434 A077435`
	KEYWORD	`nonn,base,nice`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 05 2002`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

AT&T Labs Research