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A137039
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Numbers n such that n and the square of n use only the digits 1, 3, 6, 7 and 9.
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1
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1, 3, 6, 13, 19, 31, 37, 63, 131, 313, 363, 369, 796, 1319, 3376, 11731, 11736, 17796, 31131, 31619, 61131, 61613, 61637, 117131, 133937, 191363, 193176, 311637, 311736, 333736, 336736, 369613, 616376, 969119, 1167637, 1316736, 1913619, 1917637, 1991637, 3116376, 3116619, 3336731, 3337363, 3371376, 6113376, 6139376, 6139769, 6319313
(list; graph; refs; listen; history; internal format)
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