id:A108406 - OEIS Search Results

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Numbers n such that concatenating n and the sum of the digits of n raised to their own power (A045503) produces a square.

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0, 211, 220, 235, 20403, 111416, 1011231, 3444142, 10003400, 22303600, 31151021, 53231032, 121542025, 126423126, 202032110, 243425212, 302434003, 311544033, 324231521, 334130241, 375607602, 406221650, 561620561, 662033363, 1053045074 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`235 is a term because 2^2 + 3^3 + 5^5 = 3156 and 2353156 = 1534^2.`
	CROSSREFS	`Cf. A108302.` `Sequence in context: A036232 A064826 A136601 this_sequence A051268 A133959 A133960` `Adjacent sequences: A108403 A108404 A108405 this_sequence A108407 A108408 A108409`
	KEYWORD	`base,nonn`
	AUTHOR	`Jason Earls (zevi_35711(AT)yahoo.com), Jul 04 2005`
	EXTENSIONS	`More terms from Ryan Propper (rpropper(AT)stanford.edu), Jul 07 2005`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research