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 A108406 Numbers n such that concatenating n and the sum of the digits of n raised to their own power (A045503) produces a square. 0
 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; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE 235 is a term because 2^2 + 3^3 + 5^5 = 3156 and 2353156 = 1534^2. CROSSREFS Cf. A108302. Sequence in context: A064826 A333012 A136601 * A051268 A159911 A319141 Adjacent sequences:  A108403 A108404 A108405 * A108407 A108408 A108409 KEYWORD base,nonn AUTHOR Jason Earls, Jul 04 2005 EXTENSIONS More terms from Ryan Propper, Jul 07 2005 STATUS approved

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Last modified November 27 12:51 EST 2021. Contains 349394 sequences. (Running on oeis4.)