id:A048386 - OEIS Search Results

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Numbers n such that replacing digits d in decimal expansion of n with d^2 yields a square.

+0
3

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 23, 43, 49, 61, 100, 122, 136, 148, 163, 200, 221, 244, 269, 300, 305, 366, 400, 481, 488, 500, 600, 629, 700, 800, 884, 900, 1105, 1127, 1222, 1241, 1281, 1438, 1522, 1641, 1805, 2300, 2405, 2722, 2966, 3203, 4205, 4300, 4402 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`E.g. 2722 = (2)(7)(2)(2) -> (4)(49)(4)(4) = 44944 = 212^2 and square.`
	CROSSREFS	`Cf. A048385, A048387.` `Adjacent sequences: A048383 A048384 A048385 this_sequence A048387 A048388 A048389` `Sequence in context: A034710 A061672 A132080 this_sequence A133134 A133505 A068407`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 1999.`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

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