id:A096913 - OEIS Search Results

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Numbers n such that (largest digit of n)^(smallest digit of n) + n is a square.

+0
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0, 13, 72, 80, 91, 120, 137, 163, 188, 251, 275, 281, 317, 321, 360, 388, 391, 440, 495, 527, 627, 840, 891, 960, 1023, 1088, 1148, 1151, 1288, 1363, 1437, 1520, 1591, 1674, 1680, 1757, 1841, 1927, 2024, 2113, 2208, 2303, 2365, 2400, 2464, 2491, 2565, 2600 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Conjecture: 0 and 3844 are the only squares in this sequence.`
	EXAMPLE	`388 is in the sequence because 8^3 + 388 = 900 = 30^2.`
	CROSSREFS	`Cf. A054054, A054055.` `Sequence in context: A141989 A159512 A104132 this_sequence A026916 A106173 A094943` `Adjacent sequences: A096910 A096911 A096912 this_sequence A096914 A096915 A096916`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Aug 17 2004`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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