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A137023
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Numbers n such that n and the square of n use only the digits 1, 3, 4, 5 and 9.
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0
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1, 3, 393, 115393, 399143, 141115393, 9545449143, 1191433399143, 3154543415393, 4399945449143, 5595919434143, 13943993399143, 39394341115393, 119143339434143, 139353311519143, 333933435515393, 591534913115393, 594941544449143, 599535915449143, 599995454415393, 954941544449143
(list; graph; refs; listen; history; internal format)
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